Home / 13,864.74-20,805.29-7,291.43

Finding the Fourth Proportional to 13,864.74, 20,805.29 and 7,291.43

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Solution

The fourth proportional to 13,864.74, 20,805.29 and 7,291.43 is: 10,941.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,864.74 : 20,805.29 = 7,291.43 : x
  2. Step 2: Convert to fraction form
    13,864.74/20,805.29 = 7,291.43/x
  3. Step 3: Cross multiply
    13,864.74x = 20,805.29 × 7,291.43
  4. Step 4: Simplify right side
    13,864.74x = 151,700,315.66
  5. Step 5: Solve for x
    x = 151,700,315.66/13,864.74
  6. Step 6: Final answer
    x = 10,941.45

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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.