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Finding the Fourth Proportional to 15,565, 23,347.42 and 7,240.43

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Solution

The fourth proportional to 15,565, 23,347.42 and 7,240.43 is: 10,860.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,565 : 23,347.42 = 7,240.43 : x
  2. Step 2: Convert to fraction form
    15,565/23,347.42 = 7,240.43/x
  3. Step 3: Cross multiply
    15,565x = 23,347.42 × 7,240.43
  4. Step 4: Simplify right side
    15,565x = 169,045,360.19
  5. Step 5: Solve for x
    x = 169,045,360.19/15,565
  6. Step 6: Final answer
    x = 10,860.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.