Home / 12,140.28-16,753.60-6,835.14

Finding the Fourth Proportional to 12,140.28, 16,753.60 and 6,835.14

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Solution

The fourth proportional to 12,140.28, 16,753.60 and 6,835.14 is: 9,432.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,140.28 : 16,753.60 = 6,835.14 : x
  2. Step 2: Convert to fraction form
    12,140.28/16,753.60 = 6,835.14/x
  3. Step 3: Cross multiply
    12,140.28x = 16,753.60 × 6,835.14
  4. Step 4: Simplify right side
    12,140.28x = 114,513,201.50
  5. Step 5: Solve for x
    x = 114,513,201.50/12,140.28
  6. Step 6: Final answer
    x = 9,432.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.