Home / 15,924.83-21,925.89-12,135.92

Finding the Fourth Proportional to 15,924.83, 21,925.89 and 12,135.92

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Solution

The fourth proportional to 15,924.83, 21,925.89 and 12,135.92 is: 16,709.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,924.83 : 21,925.89 = 12,135.92 : x
  2. Step 2: Convert to fraction form
    15,924.83/21,925.89 = 12,135.92/x
  3. Step 3: Cross multiply
    15,924.83x = 21,925.89 × 12,135.92
  4. Step 4: Simplify right side
    15,924.83x = 266,090,737.34
  5. Step 5: Solve for x
    x = 266,090,737.34/15,924.83
  6. Step 6: Final answer
    x = 16,709.18

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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.