Home / 14,747.42-20,351.40-8,459.76

Finding the Fourth Proportional to 14,747.42, 20,351.40 and 8,459.76

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Solution

The fourth proportional to 14,747.42, 20,351.40 and 8,459.76 is: 11,674.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,747.42 : 20,351.40 = 8,459.76 : x
  2. Step 2: Convert to fraction form
    14,747.42/20,351.40 = 8,459.76/x
  3. Step 3: Cross multiply
    14,747.42x = 20,351.40 × 8,459.76
  4. Step 4: Simplify right side
    14,747.42x = 172,167,959.66
  5. Step 5: Solve for x
    x = 172,167,959.66/14,747.42
  6. Step 6: Final answer
    x = 11,674.45

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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.