Home / 11,117.13-15,342.13-6,402.93

Finding the Fourth Proportional to 11,117.13, 15,342.13 and 6,402.93

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Solution

The fourth proportional to 11,117.13, 15,342.13 and 6,402.93 is: 8,836.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,117.13 : 15,342.13 = 6,402.93 : x
  2. Step 2: Convert to fraction form
    11,117.13/15,342.13 = 6,402.93/x
  3. Step 3: Cross multiply
    11,117.13x = 15,342.13 × 6,402.93
  4. Step 4: Simplify right side
    11,117.13x = 98,234,568.43
  5. Step 5: Solve for x
    x = 98,234,568.43/11,117.13
  6. Step 6: Final answer
    x = 8,836.32

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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.