Home / 19,715.46-27,207.30-12,641.88

Finding the Fourth Proportional to 19,715.46, 27,207.30 and 12,641.88

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Solution

The fourth proportional to 19,715.46, 27,207.30 and 12,641.88 is: 17,445.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,715.46 : 27,207.30 = 12,641.88 : x
  2. Step 2: Convert to fraction form
    19,715.46/27,207.30 = 12,641.88/x
  3. Step 3: Cross multiply
    19,715.46x = 27,207.30 × 12,641.88
  4. Step 4: Simplify right side
    19,715.46x = 343,951,421.72
  5. Step 5: Solve for x
    x = 343,951,421.72/19,715.46
  6. Step 6: Final answer
    x = 17,445.77

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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.