Home / 15,283.22-21,089.71-8,567.69

Finding the Fourth Proportional to 15,283.22, 21,089.71 and 8,567.69

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Solution

The fourth proportional to 15,283.22, 21,089.71 and 8,567.69 is: 11,822.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,283.22 : 21,089.71 = 8,567.69 : x
  2. Step 2: Convert to fraction form
    15,283.22/21,089.71 = 8,567.69/x
  3. Step 3: Cross multiply
    15,283.22x = 21,089.71 × 8,567.69
  4. Step 4: Simplify right side
    15,283.22x = 180,690,097.47
  5. Step 5: Solve for x
    x = 180,690,097.47/15,283.22
  6. Step 6: Final answer
    x = 11,822.78

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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.