Home / 19,218.28-26,521.27-10,720.19

Finding the Fourth Proportional to 19,218.28, 26,521.27 and 10,720.19

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Solution

The fourth proportional to 19,218.28, 26,521.27 and 10,720.19 is: 14,793.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,218.28 : 26,521.27 = 10,720.19 : x
  2. Step 2: Convert to fraction form
    19,218.28/26,521.27 = 10,720.19/x
  3. Step 3: Cross multiply
    19,218.28x = 26,521.27 × 10,720.19
  4. Step 4: Simplify right side
    19,218.28x = 284,313,053.44
  5. Step 5: Solve for x
    x = 284,313,053.44/19,218.28
  6. Step 6: Final answer
    x = 14,793.89

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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.