Home / 12,726.01-19,089.56-7,792.57

Finding the Fourth Proportional to 12,726.01, 19,089.56 and 7,792.57

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Solution

The fourth proportional to 12,726.01, 19,089.56 and 7,792.57 is: 11,689.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,726.01 : 19,089.56 = 7,792.57 : x
  2. Step 2: Convert to fraction form
    12,726.01/19,089.56 = 7,792.57/x
  3. Step 3: Cross multiply
    12,726.01x = 19,089.56 × 7,792.57
  4. Step 4: Simplify right side
    12,726.01x = 148,756,732.57
  5. Step 5: Solve for x
    x = 148,756,732.57/12,726.01
  6. Step 6: Final answer
    x = 11,689.19

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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.