Home / 15,283.88-22,918.26-5,421.68

Finding the Fourth Proportional to 15,283.88, 22,918.26 and 5,421.68

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Solution

The fourth proportional to 15,283.88, 22,918.26 and 5,421.68 is: 8,129.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,283.88 : 22,918.26 = 5,421.68 : x
  2. Step 2: Convert to fraction form
    15,283.88/22,918.26 = 5,421.68/x
  3. Step 3: Cross multiply
    15,283.88x = 22,918.26 × 5,421.68
  4. Step 4: Simplify right side
    15,283.88x = 124,255,471.88
  5. Step 5: Solve for x
    x = 124,255,471.88/15,283.88
  6. Step 6: Final answer
    x = 8,129.84

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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.