Home / 10,515.28-14,511.02-5,735.13

Finding the Fourth Proportional to 10,515.28, 14,511.02 and 5,735.13

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Solution

The fourth proportional to 10,515.28, 14,511.02 and 5,735.13 is: 7,914.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,515.28 : 14,511.02 = 5,735.13 : x
  2. Step 2: Convert to fraction form
    10,515.28/14,511.02 = 5,735.13/x
  3. Step 3: Cross multiply
    10,515.28x = 14,511.02 × 5,735.13
  4. Step 4: Simplify right side
    10,515.28x = 83,222,600.47
  5. Step 5: Solve for x
    x = 83,222,600.47/10,515.28
  6. Step 6: Final answer
    x = 7,914.45

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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.