Home / 16,567.90-22,872.17-12,782.57

Finding the Fourth Proportional to 16,567.90, 22,872.17 and 12,782.57

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Solution

The fourth proportional to 16,567.90, 22,872.17 and 12,782.57 is: 17,646.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,567.90 : 22,872.17 = 12,782.57 : x
  2. Step 2: Convert to fraction form
    16,567.90/22,872.17 = 12,782.57/x
  3. Step 3: Cross multiply
    16,567.90x = 22,872.17 × 12,782.57
  4. Step 4: Simplify right side
    16,567.90x = 292,365,031.67
  5. Step 5: Solve for x
    x = 292,365,031.67/16,567.90
  6. Step 6: Final answer
    x = 17,646.48

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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.