Home / 14,805.20-20,412.08-10,561.12

Finding the Fourth Proportional to 14,805.20, 20,412.08 and 10,561.12

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Solution

The fourth proportional to 14,805.20, 20,412.08 and 10,561.12 is: 14,560.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,805.20 : 20,412.08 = 10,561.12 : x
  2. Step 2: Convert to fraction form
    14,805.20/20,412.08 = 10,561.12/x
  3. Step 3: Cross multiply
    14,805.20x = 20,412.08 × 10,561.12
  4. Step 4: Simplify right side
    14,805.20x = 215,574,426.33
  5. Step 5: Solve for x
    x = 215,574,426.33/14,805.20
  6. Step 6: Final answer
    x = 14,560.72

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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.