Home / 7,146.94-9,856.20-4,904.86

Finding the Fourth Proportional to 7,146.94, 9,856.20 and 4,904.86

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Solution

The fourth proportional to 7,146.94, 9,856.20 and 4,904.86 is: 6,764.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,146.94 : 9,856.20 = 4,904.86 : x
  2. Step 2: Convert to fraction form
    7,146.94/9,856.20 = 4,904.86/x
  3. Step 3: Cross multiply
    7,146.94x = 9,856.20 × 4,904.86
  4. Step 4: Simplify right side
    7,146.94x = 48,343,281.13
  5. Step 5: Solve for x
    x = 48,343,281.13/7,146.94
  6. Step 6: Final answer
    x = 6,764.19

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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.