Home / 11,113.40-15,337.57-6,637.12

Finding the Fourth Proportional to 11,113.40, 15,337.57 and 6,637.12

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Solution

The fourth proportional to 11,113.40, 15,337.57 and 6,637.12 is: 9,159.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,113.40 : 15,337.57 = 6,637.12 : x
  2. Step 2: Convert to fraction form
    11,113.40/15,337.57 = 6,637.12/x
  3. Step 3: Cross multiply
    11,113.40x = 15,337.57 × 6,637.12
  4. Step 4: Simplify right side
    11,113.40x = 101,797,237.66
  5. Step 5: Solve for x
    x = 101,797,237.66/11,113.40
  6. Step 6: Final answer
    x = 9,159.86

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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.