Home / 12,974.80-17,904.84-7,386.32

Finding the Fourth Proportional to 12,974.80, 17,904.84 and 7,386.32

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Solution

The fourth proportional to 12,974.80, 17,904.84 and 7,386.32 is: 10,192.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,974.80 : 17,904.84 = 7,386.32 : x
  2. Step 2: Convert to fraction form
    12,974.80/17,904.84 = 7,386.32/x
  3. Step 3: Cross multiply
    12,974.80x = 17,904.84 × 7,386.32
  4. Step 4: Simplify right side
    12,974.80x = 132,250,877.79
  5. Step 5: Solve for x
    x = 132,250,877.79/12,974.80
  6. Step 6: Final answer
    x = 10,192.90

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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.