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Finding the Fourth Proportional to 18,312.47, 25,273.53 and 10,354.52

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Solution

The fourth proportional to 18,312.47, 25,273.53 and 10,354.52 is: 14,290.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,312.47 : 25,273.53 = 10,354.52 : x
  2. Step 2: Convert to fraction form
    18,312.47/25,273.53 = 10,354.52/x
  3. Step 3: Cross multiply
    18,312.47x = 25,273.53 × 10,354.52
  4. Step 4: Simplify right side
    18,312.47x = 261,695,271.86
  5. Step 5: Solve for x
    x = 261,695,271.86/18,312.47
  6. Step 6: Final answer
    x = 14,290.55

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.