Home / 9,117.40-13,679.34-4,734.76

Finding the Fourth Proportional to 9,117.40, 13,679.34 and 4,734.76

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Solution

The fourth proportional to 9,117.40, 13,679.34 and 4,734.76 is: 7,103.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,117.40 : 13,679.34 = 4,734.76 : x
  2. Step 2: Convert to fraction form
    9,117.40/13,679.34 = 4,734.76/x
  3. Step 3: Cross multiply
    9,117.40x = 13,679.34 × 4,734.76
  4. Step 4: Simplify right side
    9,117.40x = 64,768,391.86
  5. Step 5: Solve for x
    x = 64,768,391.86/9,117.40
  6. Step 6: Final answer
    x = 7,103.82

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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.