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Finding the Fourth Proportional to 12,565.56, 17,338.98 and 7,529.07

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Solution

The fourth proportional to 12,565.56, 17,338.98 and 7,529.07 is: 10,389.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,565.56 : 17,338.98 = 7,529.07 : x
  2. Step 2: Convert to fraction form
    12,565.56/17,338.98 = 7,529.07/x
  3. Step 3: Cross multiply
    12,565.56x = 17,338.98 × 7,529.07
  4. Step 4: Simplify right side
    12,565.56x = 130,546,394.15
  5. Step 5: Solve for x
    x = 130,546,394.15/12,565.56
  6. Step 6: Final answer
    x = 10,389.22

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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.