Home / 14,989.32-20,680.65-8,700.48

Finding the Fourth Proportional to 14,989.32, 20,680.65 and 8,700.48

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Solution

The fourth proportional to 14,989.32, 20,680.65 and 8,700.48 is: 12,003.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,989.32 : 20,680.65 = 8,700.48 : x
  2. Step 2: Convert to fraction form
    14,989.32/20,680.65 = 8,700.48/x
  3. Step 3: Cross multiply
    14,989.32x = 20,680.65 × 8,700.48
  4. Step 4: Simplify right side
    14,989.32x = 179,931,581.71
  5. Step 5: Solve for x
    x = 179,931,581.71/14,989.32
  6. Step 6: Final answer
    x = 12,003.99

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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.