Home / 10,254.78-15,381.95-2,859.04

Finding the Fourth Proportional to 10,254.78, 15,381.95 and 2,859.04

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Solution

The fourth proportional to 10,254.78, 15,381.95 and 2,859.04 is: 4,288.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,254.78 : 15,381.95 = 2,859.04 : x
  2. Step 2: Convert to fraction form
    10,254.78/15,381.95 = 2,859.04/x
  3. Step 3: Cross multiply
    10,254.78x = 15,381.95 × 2,859.04
  4. Step 4: Simplify right side
    10,254.78x = 43,977,557.58
  5. Step 5: Solve for x
    x = 43,977,557.58/10,254.78
  6. Step 6: Final answer
    x = 4,288.50

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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.