Home / 15,377.07-21,220.41-9,002.52

Finding the Fourth Proportional to 15,377.07, 21,220.41 and 9,002.52

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Solution

The fourth proportional to 15,377.07, 21,220.41 and 9,002.52 is: 12,423.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,377.07 : 21,220.41 = 9,002.52 : x
  2. Step 2: Convert to fraction form
    15,377.07/21,220.41 = 9,002.52/x
  3. Step 3: Cross multiply
    15,377.07x = 21,220.41 × 9,002.52
  4. Step 4: Simplify right side
    15,377.07x = 191,037,165.43
  5. Step 5: Solve for x
    x = 191,037,165.43/15,377.07
  6. Step 6: Final answer
    x = 12,423.51

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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.