Home / 11,113.16-15,327.30-9,440.10

Finding the Fourth Proportional to 11,113.16, 15,327.30 and 9,440.10

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Solution

The fourth proportional to 11,113.16, 15,327.30 and 9,440.10 is: 13,019.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,113.16 : 15,327.30 = 9,440.10 : x
  2. Step 2: Convert to fraction form
    11,113.16/15,327.30 = 9,440.10/x
  3. Step 3: Cross multiply
    11,113.16x = 15,327.30 × 9,440.10
  4. Step 4: Simplify right side
    11,113.16x = 144,691,244.73
  5. Step 5: Solve for x
    x = 144,691,244.73/11,113.16
  6. Step 6: Final answer
    x = 13,019.81

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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.