Home / 10,479.86-15,719.73-4,238.18

Finding the Fourth Proportional to 10,479.86, 15,719.73 and 4,238.18

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Solution

The fourth proportional to 10,479.86, 15,719.73 and 4,238.18 is: 6,357.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,479.86 : 15,719.73 = 4,238.18 : x
  2. Step 2: Convert to fraction form
    10,479.86/15,719.73 = 4,238.18/x
  3. Step 3: Cross multiply
    10,479.86x = 15,719.73 × 4,238.18
  4. Step 4: Simplify right side
    10,479.86x = 66,622,966.69
  5. Step 5: Solve for x
    x = 66,622,966.69/10,479.86
  6. Step 6: Final answer
    x = 6,357.24

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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.