Home / 12,160.16-18,250.60-4,769.76

Finding the Fourth Proportional to 12,160.16, 18,250.60 and 4,769.76

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Solution

The fourth proportional to 12,160.16, 18,250.60 and 4,769.76 is: 7,158.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,160.16 : 18,250.60 = 4,769.76 : x
  2. Step 2: Convert to fraction form
    12,160.16/18,250.60 = 4,769.76/x
  3. Step 3: Cross multiply
    12,160.16x = 18,250.60 × 4,769.76
  4. Step 4: Simplify right side
    12,160.16x = 87,050,981.86
  5. Step 5: Solve for x
    x = 87,050,981.86/12,160.16
  6. Step 6: Final answer
    x = 7,158.70

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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.