Home / 16,387.74-22,615.10-9,315.52

Finding the Fourth Proportional to 16,387.74, 22,615.10 and 9,315.52

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Solution

The fourth proportional to 16,387.74, 22,615.10 and 9,315.52 is: 12,855.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,387.74 : 22,615.10 = 9,315.52 : x
  2. Step 2: Convert to fraction form
    16,387.74/22,615.10 = 9,315.52/x
  3. Step 3: Cross multiply
    16,387.74x = 22,615.10 × 9,315.52
  4. Step 4: Simplify right side
    16,387.74x = 210,671,416.35
  5. Step 5: Solve for x
    x = 210,671,416.35/16,387.74
  6. Step 6: Final answer
    x = 12,855.43

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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.