Home / 11,347.42-15,657.12-6,630.79

Finding the Fourth Proportional to 11,347.42, 15,657.12 and 6,630.79

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Solution

The fourth proportional to 11,347.42, 15,657.12 and 6,630.79 is: 9,149.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,347.42 : 15,657.12 = 6,630.79 : x
  2. Step 2: Convert to fraction form
    11,347.42/15,657.12 = 6,630.79/x
  3. Step 3: Cross multiply
    11,347.42x = 15,657.12 × 6,630.79
  4. Step 4: Simplify right side
    11,347.42x = 103,819,074.72
  5. Step 5: Solve for x
    x = 103,819,074.72/11,347.42
  6. Step 6: Final answer
    x = 9,149.13

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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.