Home / 11,113.88-15,337.72-6,398.84

Finding the Fourth Proportional to 11,113.88, 15,337.72 and 6,398.84

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Solution

The fourth proportional to 11,113.88, 15,337.72 and 6,398.84 is: 8,830.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,113.88 : 15,337.72 = 6,398.84 : x
  2. Step 2: Convert to fraction form
    11,113.88/15,337.72 = 6,398.84/x
  3. Step 3: Cross multiply
    11,113.88x = 15,337.72 × 6,398.84
  4. Step 4: Simplify right side
    11,113.88x = 98,143,616.24
  5. Step 5: Solve for x
    x = 98,143,616.24/11,113.88
  6. Step 6: Final answer
    x = 8,830.72

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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.