Home / 15,040.76-20,743.70-11,272.91

Finding the Fourth Proportional to 15,040.76, 20,743.70 and 11,272.91

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Solution

The fourth proportional to 15,040.76, 20,743.70 and 11,272.91 is: 15,547.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,040.76 : 20,743.70 = 11,272.91 : x
  2. Step 2: Convert to fraction form
    15,040.76/20,743.70 = 11,272.91/x
  3. Step 3: Cross multiply
    15,040.76x = 20,743.70 × 11,272.91
  4. Step 4: Simplify right side
    15,040.76x = 233,841,703.08
  5. Step 5: Solve for x
    x = 233,841,703.08/15,040.76
  6. Step 6: Final answer
    x = 15,547.21

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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.