Home / 10,282.03-15,420.65-2,887.20

Finding the Fourth Proportional to 10,282.03, 15,420.65 and 2,887.20

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Solution

The fourth proportional to 10,282.03, 15,420.65 and 2,887.20 is: 4,330.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,282.03 : 15,420.65 = 2,887.20 : x
  2. Step 2: Convert to fraction form
    10,282.03/15,420.65 = 2,887.20/x
  3. Step 3: Cross multiply
    10,282.03x = 15,420.65 × 2,887.20
  4. Step 4: Simplify right side
    10,282.03x = 44,522,486.24
  5. Step 5: Solve for x
    x = 44,522,486.24/10,282.03
  6. Step 6: Final answer
    x = 4,330.13

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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.