Home / 15,625.28-21,567.41-8,914.57

Finding the Fourth Proportional to 15,625.28, 21,567.41 and 8,914.57

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Solution

The fourth proportional to 15,625.28, 21,567.41 and 8,914.57 is: 12,304.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,625.28 : 21,567.41 = 8,914.57 : x
  2. Step 2: Convert to fraction form
    15,625.28/21,567.41 = 8,914.57/x
  3. Step 3: Cross multiply
    15,625.28x = 21,567.41 × 8,914.57
  4. Step 4: Simplify right side
    15,625.28x = 192,264,186.16
  5. Step 5: Solve for x
    x = 192,264,186.16/15,625.28
  6. Step 6: Final answer
    x = 12,304.69

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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.