Home / 11,397.34-15,729.12-6,362.55

Finding the Fourth Proportional to 11,397.34, 15,729.12 and 6,362.55

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Solution

The fourth proportional to 11,397.34, 15,729.12 and 6,362.55 is: 8,780.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,397.34 : 15,729.12 = 6,362.55 : x
  2. Step 2: Convert to fraction form
    11,397.34/15,729.12 = 6,362.55/x
  3. Step 3: Cross multiply
    11,397.34x = 15,729.12 × 6,362.55
  4. Step 4: Simplify right side
    11,397.34x = 100,077,312.46
  5. Step 5: Solve for x
    x = 100,077,312.46/11,397.34
  6. Step 6: Final answer
    x = 8,780.76

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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.