Home / 15,751.71-21,717.66-10,077.15

Finding the Fourth Proportional to 15,751.71, 21,717.66 and 10,077.15

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Solution

The fourth proportional to 15,751.71, 21,717.66 and 10,077.15 is: 13,893.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,751.71 : 21,717.66 = 10,077.15 : x
  2. Step 2: Convert to fraction form
    15,751.71/21,717.66 = 10,077.15/x
  3. Step 3: Cross multiply
    15,751.71x = 21,717.66 × 10,077.15
  4. Step 4: Simplify right side
    15,751.71x = 218,852,117.47
  5. Step 5: Solve for x
    x = 218,852,117.47/15,751.71
  6. Step 6: Final answer
    x = 13,893.86

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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.