Home / 18,750.18-25,875.40-10,252.20

Finding the Fourth Proportional to 18,750.18, 25,875.40 and 10,252.20

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Solution

The fourth proportional to 18,750.18, 25,875.40 and 10,252.20 is: 14,148.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,750.18 : 25,875.40 = 10,252.20 : x
  2. Step 2: Convert to fraction form
    18,750.18/25,875.40 = 10,252.20/x
  3. Step 3: Cross multiply
    18,750.18x = 25,875.40 × 10,252.20
  4. Step 4: Simplify right side
    18,750.18x = 265,279,775.88
  5. Step 5: Solve for x
    x = 265,279,775.88/18,750.18
  6. Step 6: Final answer
    x = 14,148.12

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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.