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Finding the Fourth Proportional to 12,700.43, 17,527.65 and 7,394.93

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Solution

The fourth proportional to 12,700.43, 17,527.65 and 7,394.93 is: 10,205.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,700.43 : 17,527.65 = 7,394.93 : x
  2. Step 2: Convert to fraction form
    12,700.43/17,527.65 = 7,394.93/x
  3. Step 3: Cross multiply
    12,700.43x = 17,527.65 × 7,394.93
  4. Step 4: Simplify right side
    12,700.43x = 129,615,744.81
  5. Step 5: Solve for x
    x = 129,615,744.81/12,700.43
  6. Step 6: Final answer
    x = 10,205.62

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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.