Home / 15,391.12-23,072.16-7,488.64

Finding the Fourth Proportional to 15,391.12, 23,072.16 and 7,488.64

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Solution

The fourth proportional to 15,391.12, 23,072.16 and 7,488.64 is: 11,225.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,391.12 : 23,072.16 = 7,488.64 : x
  2. Step 2: Convert to fraction form
    15,391.12/23,072.16 = 7,488.64/x
  3. Step 3: Cross multiply
    15,391.12x = 23,072.16 × 7,488.64
  4. Step 4: Simplify right side
    15,391.12x = 172,779,100.26
  5. Step 5: Solve for x
    x = 172,779,100.26/15,391.12
  6. Step 6: Final answer
    x = 11,225.90

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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.