Home / 14,521.60-21,738.52-13,135.56

Finding the Fourth Proportional to 14,521.60, 21,738.52 and 13,135.56

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Solution

The fourth proportional to 14,521.60, 21,738.52 and 13,135.56 is: 19,663.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,521.60 : 21,738.52 = 13,135.56 : x
  2. Step 2: Convert to fraction form
    14,521.60/21,738.52 = 13,135.56/x
  3. Step 3: Cross multiply
    14,521.60x = 21,738.52 × 13,135.56
  4. Step 4: Simplify right side
    14,521.60x = 285,547,633.77
  5. Step 5: Solve for x
    x = 285,547,633.77/14,521.60
  6. Step 6: Final answer
    x = 19,663.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.