Home / 17,857.02-24,638.13-11,145.90

Finding the Fourth Proportional to 17,857.02, 24,638.13 and 11,145.90

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Solution

The fourth proportional to 17,857.02, 24,638.13 and 11,145.90 is: 15,378.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,857.02 : 24,638.13 = 11,145.90 : x
  2. Step 2: Convert to fraction form
    17,857.02/24,638.13 = 11,145.90/x
  3. Step 3: Cross multiply
    17,857.02x = 24,638.13 × 11,145.90
  4. Step 4: Simplify right side
    17,857.02x = 274,614,133.17
  5. Step 5: Solve for x
    x = 274,614,133.17/17,857.02
  6. Step 6: Final answer
    x = 15,378.50

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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.