Home / 15,282.31-21,089.58-8,567.92

Finding the Fourth Proportional to 15,282.31, 21,089.58 and 8,567.92

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Solution

The fourth proportional to 15,282.31, 21,089.58 and 8,567.92 is: 11,823.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,282.31 : 21,089.58 = 8,567.92 : x
  2. Step 2: Convert to fraction form
    15,282.31/21,089.58 = 8,567.92/x
  3. Step 3: Cross multiply
    15,282.31x = 21,089.58 × 8,567.92
  4. Step 4: Simplify right side
    15,282.31x = 180,693,834.27
  5. Step 5: Solve for x
    x = 180,693,834.27/15,282.31
  6. Step 6: Final answer
    x = 11,823.73

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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.