Home / 15,587.70-23,381.64-5,199.42

Finding the Fourth Proportional to 15,587.70, 23,381.64 and 5,199.42

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Solution

The fourth proportional to 15,587.70, 23,381.64 and 5,199.42 is: 7,799.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,587.70 : 23,381.64 = 5,199.42 : x
  2. Step 2: Convert to fraction form
    15,587.70/23,381.64 = 5,199.42/x
  3. Step 3: Cross multiply
    15,587.70x = 23,381.64 × 5,199.42
  4. Step 4: Simplify right side
    15,587.70x = 121,570,966.65
  5. Step 5: Solve for x
    x = 121,570,966.65/15,587.70
  6. Step 6: Final answer
    x = 7,799.16

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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.