Home / 10,960.74-15,130.86-6,422.76

Finding the Fourth Proportional to 10,960.74, 15,130.86 and 6,422.76

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Solution

The fourth proportional to 10,960.74, 15,130.86 and 6,422.76 is: 8,866.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,960.74 : 15,130.86 = 6,422.76 : x
  2. Step 2: Convert to fraction form
    10,960.74/15,130.86 = 6,422.76/x
  3. Step 3: Cross multiply
    10,960.74x = 15,130.86 × 6,422.76
  4. Step 4: Simplify right side
    10,960.74x = 97,181,882.37
  5. Step 5: Solve for x
    x = 97,181,882.37/10,960.74
  6. Step 6: Final answer
    x = 8,866.36

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Half scale
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Double scale
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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.