Home / 18,102.08-24,981.78-10,143.84

Finding the Fourth Proportional to 18,102.08, 24,981.78 and 10,143.84

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Solution

The fourth proportional to 18,102.08, 24,981.78 and 10,143.84 is: 13,999.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,102.08 : 24,981.78 = 10,143.84 : x
  2. Step 2: Convert to fraction form
    18,102.08/24,981.78 = 10,143.84/x
  3. Step 3: Cross multiply
    18,102.08x = 24,981.78 × 10,143.84
  4. Step 4: Simplify right side
    18,102.08x = 253,411,179.24
  5. Step 5: Solve for x
    x = 253,411,179.24/18,102.08
  6. Step 6: Final answer
    x = 13,999.01

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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.