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Finding the Fourth Proportional to 18,211.04, 25,130.28 and 10,253

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Solution

The fourth proportional to 18,211.04, 25,130.28 and 10,253 is: 14,148.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,211.04 : 25,130.28 = 10,253 : x
  2. Step 2: Convert to fraction form
    18,211.04/25,130.28 = 10,253/x
  3. Step 3: Cross multiply
    18,211.04x = 25,130.28 × 10,253
  4. Step 4: Simplify right side
    18,211.04x = 257,660,760.84
  5. Step 5: Solve for x
    x = 257,660,760.84/18,211.04
  6. Step 6: Final answer
    x = 14,148.60

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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.