Home / 12,642.29-17,446.32-6,977.00

Finding the Fourth Proportional to 12,642.29, 17,446.32 and 6,977.00

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Solution

The fourth proportional to 12,642.29, 17,446.32 and 6,977.00 is: 9,628.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,642.29 : 17,446.32 = 6,977.00 : x
  2. Step 2: Convert to fraction form
    12,642.29/17,446.32 = 6,977.00/x
  3. Step 3: Cross multiply
    12,642.29x = 17,446.32 × 6,977.00
  4. Step 4: Simplify right side
    12,642.29x = 121,722,887.41
  5. Step 5: Solve for x
    x = 121,722,887.41/12,642.29
  6. Step 6: Final answer
    x = 9,628.23

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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.