Home / 11,122.01-15,341.29-7,763.60

Finding the Fourth Proportional to 11,122.01, 15,341.29 and 7,763.60

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Solution

The fourth proportional to 11,122.01, 15,341.29 and 7,763.60 is: 10,708.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,122.01 : 15,341.29 = 7,763.60 : x
  2. Step 2: Convert to fraction form
    11,122.01/15,341.29 = 7,763.60/x
  3. Step 3: Cross multiply
    11,122.01x = 15,341.29 × 7,763.60
  4. Step 4: Simplify right side
    11,122.01x = 119,103,639.04
  5. Step 5: Solve for x
    x = 119,103,639.04/11,122.01
  6. Step 6: Final answer
    x = 10,708.82

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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.