Home / 15,675.54-23,514.67-5,142.40

Finding the Fourth Proportional to 15,675.54, 23,514.67 and 5,142.40

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Solution

The fourth proportional to 15,675.54, 23,514.67 and 5,142.40 is: 7,714.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,675.54 : 23,514.67 = 5,142.40 : x
  2. Step 2: Convert to fraction form
    15,675.54/23,514.67 = 5,142.40/x
  3. Step 3: Cross multiply
    15,675.54x = 23,514.67 × 5,142.40
  4. Step 4: Simplify right side
    15,675.54x = 120,921,839.01
  5. Step 5: Solve for x
    x = 120,921,839.01/15,675.54
  6. Step 6: Final answer
    x = 7,714.05

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1.5x scale

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.