Home / 19,959.40-27,543.34-11,007.28

Finding the Fourth Proportional to 19,959.40, 27,543.34 and 11,007.28

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Solution

The fourth proportional to 19,959.40, 27,543.34 and 11,007.28 is: 15,189.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,959.40 : 27,543.34 = 11,007.28 : x
  2. Step 2: Convert to fraction form
    19,959.40/27,543.34 = 11,007.28/x
  3. Step 3: Cross multiply
    19,959.40x = 27,543.34 × 11,007.28
  4. Step 4: Simplify right side
    19,959.40x = 303,177,255.52
  5. Step 5: Solve for x
    x = 303,177,255.52/19,959.40
  6. Step 6: Final answer
    x = 15,189.70

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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.