Home / 12,019.47-18,032.45-10,862.79

Finding the Fourth Proportional to 12,019.47, 18,032.45 and 10,862.79

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Solution

The fourth proportional to 12,019.47, 18,032.45 and 10,862.79 is: 16,297.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,019.47 : 18,032.45 = 10,862.79 : x
  2. Step 2: Convert to fraction form
    12,019.47/18,032.45 = 10,862.79/x
  3. Step 3: Cross multiply
    12,019.47x = 18,032.45 × 10,862.79
  4. Step 4: Simplify right side
    12,019.47x = 195,882,663.22
  5. Step 5: Solve for x
    x = 195,882,663.22/12,019.47
  6. Step 6: Final answer
    x = 16,297.11

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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.