Home / 19,909.16-27,474.76-10,956.40

Finding the Fourth Proportional to 19,909.16, 27,474.76 and 10,956.40

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Solution

The fourth proportional to 19,909.16, 27,474.76 and 10,956.40 is: 15,119.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,909.16 : 27,474.76 = 10,956.40 : x
  2. Step 2: Convert to fraction form
    19,909.16/27,474.76 = 10,956.40/x
  3. Step 3: Cross multiply
    19,909.16x = 27,474.76 × 10,956.40
  4. Step 4: Simplify right side
    19,909.16x = 301,024,460.46
  5. Step 5: Solve for x
    x = 301,024,460.46/19,909.16
  6. Step 6: Final answer
    x = 15,119.90

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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.