Home / 11,465.92-15,817.15-7,489.36

Finding the Fourth Proportional to 11,465.92, 15,817.15 and 7,489.36

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Solution

The fourth proportional to 11,465.92, 15,817.15 and 7,489.36 is: 10,331.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,465.92 : 15,817.15 = 7,489.36 : x
  2. Step 2: Convert to fraction form
    11,465.92/15,817.15 = 7,489.36/x
  3. Step 3: Cross multiply
    11,465.92x = 15,817.15 × 7,489.36
  4. Step 4: Simplify right side
    11,465.92x = 118,460,330.52
  5. Step 5: Solve for x
    x = 118,460,330.52/11,465.92
  6. Step 6: Final answer
    x = 10,331.52

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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.