Home / 10,957.50-15,113.19-7,371.30

Finding the Fourth Proportional to 10,957.50, 15,113.19 and 7,371.30

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Solution

The fourth proportional to 10,957.50, 15,113.19 and 7,371.30 is: 10,166.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,957.50 : 15,113.19 = 7,371.30 : x
  2. Step 2: Convert to fraction form
    10,957.50/15,113.19 = 7,371.30/x
  3. Step 3: Cross multiply
    10,957.50x = 15,113.19 × 7,371.30
  4. Step 4: Simplify right side
    10,957.50x = 111,403,857.45
  5. Step 5: Solve for x
    x = 111,403,857.45/10,957.50
  6. Step 6: Final answer
    x = 10,166.90

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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.