Home / 10,983.60-15,155.10-6,269.40

Finding the Fourth Proportional to 10,983.60, 15,155.10 and 6,269.40

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Solution

The fourth proportional to 10,983.60, 15,155.10 and 6,269.40 is: 8,650.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,983.60 : 15,155.10 = 6,269.40 : x
  2. Step 2: Convert to fraction form
    10,983.60/15,155.10 = 6,269.40/x
  3. Step 3: Cross multiply
    10,983.60x = 15,155.10 × 6,269.40
  4. Step 4: Simplify right side
    10,983.60x = 95,013,383.94
  5. Step 5: Solve for x
    x = 95,013,383.94/10,983.60
  6. Step 6: Final answer
    x = 8,650.48

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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.