Home / 14,520.40-20,044.28-9,811.06

Finding the Fourth Proportional to 14,520.40, 20,044.28 and 9,811.06

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Solution

The fourth proportional to 14,520.40, 20,044.28 and 9,811.06 is: 13,543.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,520.40 : 20,044.28 = 9,811.06 : x
  2. Step 2: Convert to fraction form
    14,520.40/20,044.28 = 9,811.06/x
  3. Step 3: Cross multiply
    14,520.40x = 20,044.28 × 9,811.06
  4. Step 4: Simplify right side
    14,520.40x = 196,655,633.74
  5. Step 5: Solve for x
    x = 196,655,633.74/14,520.40
  6. Step 6: Final answer
    x = 13,543.40

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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.