Home / 14,872.47-20,521.83-8,902.89

Finding the Fourth Proportional to 14,872.47, 20,521.83 and 8,902.89

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Solution

The fourth proportional to 14,872.47, 20,521.83 and 8,902.89 is: 12,284.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,872.47 : 20,521.83 = 8,902.89 : x
  2. Step 2: Convert to fraction form
    14,872.47/20,521.83 = 8,902.89/x
  3. Step 3: Cross multiply
    14,872.47x = 20,521.83 × 8,902.89
  4. Step 4: Simplify right side
    14,872.47x = 182,703,595.09
  5. Step 5: Solve for x
    x = 182,703,595.09/14,872.47
  6. Step 6: Final answer
    x = 12,284.68

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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.