Home / 9,337.12-12,885.20-5,145.36

Finding the Fourth Proportional to 9,337.12, 12,885.20 and 5,145.36

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Solution

The fourth proportional to 9,337.12, 12,885.20 and 5,145.36 is: 7,100.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,337.12 : 12,885.20 = 5,145.36 : x
  2. Step 2: Convert to fraction form
    9,337.12/12,885.20 = 5,145.36/x
  3. Step 3: Cross multiply
    9,337.12x = 12,885.20 × 5,145.36
  4. Step 4: Simplify right side
    9,337.12x = 66,298,992.67
  5. Step 5: Solve for x
    x = 66,298,992.67/9,337.12
  6. Step 6: Final answer
    x = 7,100.58

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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.