Home / 19,437.20-26,825.28-11,886.92

Finding the Fourth Proportional to 19,437.20, 26,825.28 and 11,886.92

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Solution

The fourth proportional to 19,437.20, 26,825.28 and 11,886.92 is: 16,405.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,437.20 : 26,825.28 = 11,886.92 : x
  2. Step 2: Convert to fraction form
    19,437.20/26,825.28 = 11,886.92/x
  3. Step 3: Cross multiply
    19,437.20x = 26,825.28 × 11,886.92
  4. Step 4: Simplify right side
    19,437.20x = 318,869,957.34
  5. Step 5: Solve for x
    x = 318,869,957.34/19,437.20
  6. Step 6: Final answer
    x = 16,405.14

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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.