Home / 16,945.47-25,359.21-10,278.09

Finding the Fourth Proportional to 16,945.47, 25,359.21 and 10,278.09

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Solution

The fourth proportional to 16,945.47, 25,359.21 and 10,278.09 is: 15,381.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,945.47 : 25,359.21 = 10,278.09 : x
  2. Step 2: Convert to fraction form
    16,945.47/25,359.21 = 10,278.09/x
  3. Step 3: Cross multiply
    16,945.47x = 25,359.21 × 10,278.09
  4. Step 4: Simplify right side
    16,945.47x = 260,644,242.71
  5. Step 5: Solve for x
    x = 260,644,242.71/16,945.47
  6. Step 6: Final answer
    x = 15,381.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.