Home / 13,561.40-20,337.42-6,444.82

Finding the Fourth Proportional to 13,561.40, 20,337.42 and 6,444.82

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Solution

The fourth proportional to 13,561.40, 20,337.42 and 6,444.82 is: 9,665.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,561.40 : 20,337.42 = 6,444.82 : x
  2. Step 2: Convert to fraction form
    13,561.40/20,337.42 = 6,444.82/x
  3. Step 3: Cross multiply
    13,561.40x = 20,337.42 × 6,444.82
  4. Step 4: Simplify right side
    13,561.40x = 131,071,011.16
  5. Step 5: Solve for x
    x = 131,071,011.16/13,561.40
  6. Step 6: Final answer
    x = 9,665.01

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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.