Home / 14,607.74-20,149.29-9,220.66

Finding the Fourth Proportional to 14,607.74, 20,149.29 and 9,220.66

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Solution

The fourth proportional to 14,607.74, 20,149.29 and 9,220.66 is: 12,718.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,607.74 : 20,149.29 = 9,220.66 : x
  2. Step 2: Convert to fraction form
    14,607.74/20,149.29 = 9,220.66/x
  3. Step 3: Cross multiply
    14,607.74x = 20,149.29 × 9,220.66
  4. Step 4: Simplify right side
    14,607.74x = 185,789,701.96
  5. Step 5: Solve for x
    x = 185,789,701.96/14,607.74
  6. Step 6: Final answer
    x = 12,718.58

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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.