Home / 15,432.48-21,296.81-8,358.89

Finding the Fourth Proportional to 15,432.48, 21,296.81 and 8,358.89

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Solution

The fourth proportional to 15,432.48, 21,296.81 and 8,358.89 is: 11,535.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,432.48 : 21,296.81 = 8,358.89 : x
  2. Step 2: Convert to fraction form
    15,432.48/21,296.81 = 8,358.89/x
  3. Step 3: Cross multiply
    15,432.48x = 21,296.81 × 8,358.89
  4. Step 4: Simplify right side
    15,432.48x = 178,017,606.55
  5. Step 5: Solve for x
    x = 178,017,606.55/15,432.48
  6. Step 6: Final answer
    x = 11,535.26

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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.