Home / 19,521.14-26,929.06-13,557.92

Finding the Fourth Proportional to 19,521.14, 26,929.06 and 13,557.92

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Solution

The fourth proportional to 19,521.14, 26,929.06 and 13,557.92 is: 18,702.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,521.14 : 26,929.06 = 13,557.92 : x
  2. Step 2: Convert to fraction form
    19,521.14/26,929.06 = 13,557.92/x
  3. Step 3: Cross multiply
    19,521.14x = 26,929.06 × 13,557.92
  4. Step 4: Simplify right side
    19,521.14x = 365,101,872.62
  5. Step 5: Solve for x
    x = 365,101,872.62/19,521.14
  6. Step 6: Final answer
    x = 18,702.90

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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.