Home / 11,599.61-15,989.67-7,115.04

Finding the Fourth Proportional to 11,599.61, 15,989.67 and 7,115.04

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Solution

The fourth proportional to 11,599.61, 15,989.67 and 7,115.04 is: 9,807.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,599.61 : 15,989.67 = 7,115.04 : x
  2. Step 2: Convert to fraction form
    11,599.61/15,989.67 = 7,115.04/x
  3. Step 3: Cross multiply
    11,599.61x = 15,989.67 × 7,115.04
  4. Step 4: Simplify right side
    11,599.61x = 113,767,141.64
  5. Step 5: Solve for x
    x = 113,767,141.64/11,599.61
  6. Step 6: Final answer
    x = 9,807.85

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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.