Home / 12,521.80-18,758.94-6,681.16

Finding the Fourth Proportional to 12,521.80, 18,758.94 and 6,681.16

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Solution

The fourth proportional to 12,521.80, 18,758.94 and 6,681.16 is: 10,009.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,521.80 : 18,758.94 = 6,681.16 : x
  2. Step 2: Convert to fraction form
    12,521.80/18,758.94 = 6,681.16/x
  3. Step 3: Cross multiply
    12,521.80x = 18,758.94 × 6,681.16
  4. Step 4: Simplify right side
    12,521.80x = 125,331,479.57
  5. Step 5: Solve for x
    x = 125,331,479.57/12,521.80
  6. Step 6: Final answer
    x = 10,009.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.