Home / 8,945.28-12,345.36-4,966.35

Finding the Fourth Proportional to 8,945.28, 12,345.36 and 4,966.35

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Solution

The fourth proportional to 8,945.28, 12,345.36 and 4,966.35 is: 6,854.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,945.28 : 12,345.36 = 4,966.35 : x
  2. Step 2: Convert to fraction form
    8,945.28/12,345.36 = 4,966.35/x
  3. Step 3: Cross multiply
    8,945.28x = 12,345.36 × 4,966.35
  4. Step 4: Simplify right side
    8,945.28x = 61,311,378.64
  5. Step 5: Solve for x
    x = 61,311,378.64/8,945.28
  6. Step 6: Final answer
    x = 6,854.05

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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.