Home / 10,831.30-16,235.76-4,166.20

Finding the Fourth Proportional to 10,831.30, 16,235.76 and 4,166.20

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Solution

The fourth proportional to 10,831.30, 16,235.76 and 4,166.20 is: 6,245.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,831.30 : 16,235.76 = 4,166.20 : x
  2. Step 2: Convert to fraction form
    10,831.30/16,235.76 = 4,166.20/x
  3. Step 3: Cross multiply
    10,831.30x = 16,235.76 × 4,166.20
  4. Step 4: Simplify right side
    10,831.30x = 67,641,423.31
  5. Step 5: Solve for x
    x = 67,641,423.31/10,831.30
  6. Step 6: Final answer
    x = 6,245.00

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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.