Home / 14,700.27-20,279.59-8,728.55

Finding the Fourth Proportional to 14,700.27, 20,279.59 and 8,728.55

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Solution

The fourth proportional to 14,700.27, 20,279.59 and 8,728.55 is: 12,041.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,700.27 : 20,279.59 = 8,728.55 : x
  2. Step 2: Convert to fraction form
    14,700.27/20,279.59 = 8,728.55/x
  3. Step 3: Cross multiply
    14,700.27x = 20,279.59 × 8,728.55
  4. Step 4: Simplify right side
    14,700.27x = 177,011,415.29
  5. Step 5: Solve for x
    x = 177,011,415.29/14,700.27
  6. Step 6: Final answer
    x = 12,041.37

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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.