Home / 18,712.05-25,822.47-10,328.55

Finding the Fourth Proportional to 18,712.05, 25,822.47 and 10,328.55

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Solution

The fourth proportional to 18,712.05, 25,822.47 and 10,328.55 is: 14,253.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,712.05 : 25,822.47 = 10,328.55 : x
  2. Step 2: Convert to fraction form
    18,712.05/25,822.47 = 10,328.55/x
  3. Step 3: Cross multiply
    18,712.05x = 25,822.47 × 10,328.55
  4. Step 4: Simplify right side
    18,712.05x = 266,708,672.52
  5. Step 5: Solve for x
    x = 266,708,672.52/18,712.05
  6. Step 6: Final answer
    x = 14,253.31

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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.