Home / 10,442.07-15,642.24-6,279.80

Finding the Fourth Proportional to 10,442.07, 15,642.24 and 6,279.80

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Solution

The fourth proportional to 10,442.07, 15,642.24 and 6,279.80 is: 9,407.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,442.07 : 15,642.24 = 6,279.80 : x
  2. Step 2: Convert to fraction form
    10,442.07/15,642.24 = 6,279.80/x
  3. Step 3: Cross multiply
    10,442.07x = 15,642.24 × 6,279.80
  4. Step 4: Simplify right side
    10,442.07x = 98,230,036.99
  5. Step 5: Solve for x
    x = 98,230,036.99/10,442.07
  6. Step 6: Final answer
    x = 9,407.14

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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.