Home / 12,140.87-16,754.72-6,835.28

Finding the Fourth Proportional to 12,140.87, 16,754.72 and 6,835.28

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Solution

The fourth proportional to 12,140.87, 16,754.72 and 6,835.28 is: 9,432.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,140.87 : 16,754.72 = 6,835.28 : x
  2. Step 2: Convert to fraction form
    12,140.87/16,754.72 = 6,835.28/x
  3. Step 3: Cross multiply
    12,140.87x = 16,754.72 × 6,835.28
  4. Step 4: Simplify right side
    12,140.87x = 114,523,084.57
  5. Step 5: Solve for x
    x = 114,523,084.57/12,140.87
  6. Step 6: Final answer
    x = 9,432.86

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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.