Home / 8,742.24-13,115.88-5,047.08

Finding the Fourth Proportional to 8,742.24, 13,115.88 and 5,047.08

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Solution

The fourth proportional to 8,742.24, 13,115.88 and 5,047.08 is: 7,572.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,742.24 : 13,115.88 = 5,047.08 : x
  2. Step 2: Convert to fraction form
    8,742.24/13,115.88 = 5,047.08/x
  3. Step 3: Cross multiply
    8,742.24x = 13,115.88 × 5,047.08
  4. Step 4: Simplify right side
    8,742.24x = 66,196,895.63
  5. Step 5: Solve for x
    x = 66,196,895.63/8,742.24
  6. Step 6: Final answer
    x = 7,572.07

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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.