Home / 8,945.76-12,345.57-4,966.86

Finding the Fourth Proportional to 8,945.76, 12,345.57 and 4,966.86

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Solution

The fourth proportional to 8,945.76, 12,345.57 and 4,966.86 is: 6,854.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,945.76 : 12,345.57 = 4,966.86 : x
  2. Step 2: Convert to fraction form
    8,945.76/12,345.57 = 4,966.86/x
  3. Step 3: Cross multiply
    8,945.76x = 12,345.57 × 4,966.86
  4. Step 4: Simplify right side
    8,945.76x = 61,318,717.81
  5. Step 5: Solve for x
    x = 61,318,717.81/8,945.76
  6. Step 6: Final answer
    x = 6,854.50

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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.