Home / 10,460.48-15,689.92-4,915.12

Finding the Fourth Proportional to 10,460.48, 15,689.92 and 4,915.12

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Solution

The fourth proportional to 10,460.48, 15,689.92 and 4,915.12 is: 7,372.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,460.48 : 15,689.92 = 4,915.12 : x
  2. Step 2: Convert to fraction form
    10,460.48/15,689.92 = 4,915.12/x
  3. Step 3: Cross multiply
    10,460.48x = 15,689.92 × 4,915.12
  4. Step 4: Simplify right side
    10,460.48x = 77,117,839.59
  5. Step 5: Solve for x
    x = 77,117,839.59/10,460.48
  6. Step 6: Final answer
    x = 7,372.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.