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Finding the Fourth Proportional to 15,687, 23,535.36 and 6,453

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Solution

The fourth proportional to 15,687, 23,535.36 and 6,453 is: 9,681.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,687 : 23,535.36 = 6,453 : x
  2. Step 2: Convert to fraction form
    15,687/23,535.36 = 6,453/x
  3. Step 3: Cross multiply
    15,687x = 23,535.36 × 6,453
  4. Step 4: Simplify right side
    15,687x = 151,873,678.08
  5. Step 5: Solve for x
    x = 151,873,678.08/15,687
  6. Step 6: Final answer
    x = 9,681.50

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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.