Home / 9,110.28-12,572.21-5,332.76

Finding the Fourth Proportional to 9,110.28, 12,572.21 and 5,332.76

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Solution

The fourth proportional to 9,110.28, 12,572.21 and 5,332.76 is: 7,359.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,110.28 : 12,572.21 = 5,332.76 : x
  2. Step 2: Convert to fraction form
    9,110.28/12,572.21 = 5,332.76/x
  3. Step 3: Cross multiply
    9,110.28x = 12,572.21 × 5,332.76
  4. Step 4: Simplify right side
    9,110.28x = 67,044,578.60
  5. Step 5: Solve for x
    x = 67,044,578.60/9,110.28
  6. Step 6: Final answer
    x = 7,359.22

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Half scale
Find fourth proportional to 18,220.56, 25,144.42 and 10,665.52
Double scale
Find fourth proportional to 9,111.28, 12,573.59 and 5,333.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.