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Finding the Fourth Proportional to 11,234.59, 15,505.19 and 9,342.93

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Solution

The fourth proportional to 11,234.59, 15,505.19 and 9,342.93 is: 12,894.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,234.59 : 15,505.19 = 9,342.93 : x
  2. Step 2: Convert to fraction form
    11,234.59/15,505.19 = 9,342.93/x
  3. Step 3: Cross multiply
    11,234.59x = 15,505.19 × 9,342.93
  4. Step 4: Simplify right side
    11,234.59x = 144,863,904.81
  5. Step 5: Solve for x
    x = 144,863,904.81/11,234.59
  6. Step 6: Final answer
    x = 12,894.45

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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.