Home / 10,257.80-14,154.68-5,782.23

Finding the Fourth Proportional to 10,257.80, 14,154.68 and 5,782.23

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Solution

The fourth proportional to 10,257.80, 14,154.68 and 5,782.23 is: 7,978.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,257.80 : 14,154.68 = 5,782.23 : x
  2. Step 2: Convert to fraction form
    10,257.80/14,154.68 = 5,782.23/x
  3. Step 3: Cross multiply
    10,257.80x = 14,154.68 × 5,782.23
  4. Step 4: Simplify right side
    10,257.80x = 81,845,629.79
  5. Step 5: Solve for x
    x = 81,845,629.79/10,257.80
  6. Step 6: Final answer
    x = 7,978.87

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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.