Home / 16,215.39-22,374.23-9,140.45

Finding the Fourth Proportional to 16,215.39, 22,374.23 and 9,140.45

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Solution

The fourth proportional to 16,215.39, 22,374.23 and 9,140.45 is: 12,612.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,215.39 : 22,374.23 = 9,140.45 : x
  2. Step 2: Convert to fraction form
    16,215.39/22,374.23 = 9,140.45/x
  3. Step 3: Cross multiply
    16,215.39x = 22,374.23 × 9,140.45
  4. Step 4: Simplify right side
    16,215.39x = 204,510,373.03
  5. Step 5: Solve for x
    x = 204,510,373.03/16,215.39
  6. Step 6: Final answer
    x = 12,612.12

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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.