Home / 15,575.55-21,494.28-8,862.50

Finding the Fourth Proportional to 15,575.55, 21,494.28 and 8,862.50

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Solution

The fourth proportional to 15,575.55, 21,494.28 and 8,862.50 is: 12,230.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,575.55 : 21,494.28 = 8,862.50 : x
  2. Step 2: Convert to fraction form
    15,575.55/21,494.28 = 8,862.50/x
  3. Step 3: Cross multiply
    15,575.55x = 21,494.28 × 8,862.50
  4. Step 4: Simplify right side
    15,575.55x = 190,492,949.03
  5. Step 5: Solve for x
    x = 190,492,949.03/15,575.55
  6. Step 6: Final answer
    x = 12,230.26

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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.