Home / 19,713.36-29,560.20-6,561.12

Finding the Fourth Proportional to 19,713.36, 29,560.20 and 6,561.12

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Solution

The fourth proportional to 19,713.36, 29,560.20 and 6,561.12 is: 9,838.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,713.36 : 29,560.20 = 6,561.12 : x
  2. Step 2: Convert to fraction form
    19,713.36/29,560.20 = 6,561.12/x
  3. Step 3: Cross multiply
    19,713.36x = 29,560.20 × 6,561.12
  4. Step 4: Simplify right side
    19,713.36x = 193,948,019.42
  5. Step 5: Solve for x
    x = 193,948,019.42/19,713.36
  6. Step 6: Final answer
    x = 9,838.40

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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.