Home / 10,118.72-15,187.80-4,928.24

Finding the Fourth Proportional to 10,118.72, 15,187.80 and 4,928.24

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Solution

The fourth proportional to 10,118.72, 15,187.80 and 4,928.24 is: 7,397.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,118.72 : 15,187.80 = 4,928.24 : x
  2. Step 2: Convert to fraction form
    10,118.72/15,187.80 = 4,928.24/x
  3. Step 3: Cross multiply
    10,118.72x = 15,187.80 × 4,928.24
  4. Step 4: Simplify right side
    10,118.72x = 74,849,179.92
  5. Step 5: Solve for x
    x = 74,849,179.92/10,118.72
  6. Step 6: Final answer
    x = 7,397.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.