Home / 14,988.27-20,685.86-8,700.64

Finding the Fourth Proportional to 14,988.27, 20,685.86 and 8,700.64

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Solution

The fourth proportional to 14,988.27, 20,685.86 and 8,700.64 is: 12,008.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,988.27 : 20,685.86 = 8,700.64 : x
  2. Step 2: Convert to fraction form
    14,988.27/20,685.86 = 8,700.64/x
  3. Step 3: Cross multiply
    14,988.27x = 20,685.86 × 8,700.64
  4. Step 4: Simplify right side
    14,988.27x = 179,980,220.95
  5. Step 5: Solve for x
    x = 179,980,220.95/14,988.27
  6. Step 6: Final answer
    x = 12,008.07

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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.