Home / 12,303.12-16,979.04-9,314.22

Finding the Fourth Proportional to 12,303.12, 16,979.04 and 9,314.22

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Solution

The fourth proportional to 12,303.12, 16,979.04 and 9,314.22 is: 12,854.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,303.12 : 16,979.04 = 9,314.22 : x
  2. Step 2: Convert to fraction form
    12,303.12/16,979.04 = 9,314.22/x
  3. Step 3: Cross multiply
    12,303.12x = 16,979.04 × 9,314.22
  4. Step 4: Simplify right side
    12,303.12x = 158,146,513.95
  5. Step 5: Solve for x
    x = 158,146,513.95/12,303.12
  6. Step 6: Final answer
    x = 12,854.18

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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.