Home / 9,319.83-12,854.67-6,488.19

Finding the Fourth Proportional to 9,319.83, 12,854.67 and 6,488.19

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Solution

The fourth proportional to 9,319.83, 12,854.67 and 6,488.19 is: 8,949.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,319.83 : 12,854.67 = 6,488.19 : x
  2. Step 2: Convert to fraction form
    9,319.83/12,854.67 = 6,488.19/x
  3. Step 3: Cross multiply
    9,319.83x = 12,854.67 × 6,488.19
  4. Step 4: Simplify right side
    9,319.83x = 83,403,541.35
  5. Step 5: Solve for x
    x = 83,403,541.35/9,319.83
  6. Step 6: Final answer
    x = 8,949.04

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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.