Home / 9,383.08-12,948.60-5,402.76

Finding the Fourth Proportional to 9,383.08, 12,948.60 and 5,402.76

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Solution

The fourth proportional to 9,383.08, 12,948.60 and 5,402.76 is: 7,455.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,383.08 : 12,948.60 = 5,402.76 : x
  2. Step 2: Convert to fraction form
    9,383.08/12,948.60 = 5,402.76/x
  3. Step 3: Cross multiply
    9,383.08x = 12,948.60 × 5,402.76
  4. Step 4: Simplify right side
    9,383.08x = 69,958,178.14
  5. Step 5: Solve for x
    x = 69,958,178.14/9,383.08
  6. Step 6: Final answer
    x = 7,455.78

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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.