Home / 8,945.92-12,345.50-4,967.28

Finding the Fourth Proportional to 8,945.92, 12,345.50 and 4,967.28

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Solution

The fourth proportional to 8,945.92, 12,345.50 and 4,967.28 is: 6,854.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,945.92 : 12,345.50 = 4,967.28 : x
  2. Step 2: Convert to fraction form
    8,945.92/12,345.50 = 4,967.28/x
  3. Step 3: Cross multiply
    8,945.92x = 12,345.50 × 4,967.28
  4. Step 4: Simplify right side
    8,945.92x = 61,323,555.24
  5. Step 5: Solve for x
    x = 61,323,555.24/8,945.92
  6. Step 6: Final answer
    x = 6,854.92

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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.