Home / 10,688.10-16,112.28-9,974.52

Finding the Fourth Proportional to 10,688.10, 16,112.28 and 9,974.52

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Solution

The fourth proportional to 10,688.10, 16,112.28 and 9,974.52 is: 15,036.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,688.10 : 16,112.28 = 9,974.52 : x
  2. Step 2: Convert to fraction form
    10,688.10/16,112.28 = 9,974.52/x
  3. Step 3: Cross multiply
    10,688.10x = 16,112.28 × 9,974.52
  4. Step 4: Simplify right side
    10,688.10x = 160,712,259.11
  5. Step 5: Solve for x
    x = 160,712,259.11/10,688.10
  6. Step 6: Final answer
    x = 15,036.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.