Home / 18,418.71-25,417.76-10,459.35

Finding the Fourth Proportional to 18,418.71, 25,417.76 and 10,459.35

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Solution

The fourth proportional to 18,418.71, 25,417.76 and 10,459.35 is: 14,433.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,418.71 : 25,417.76 = 10,459.35 : x
  2. Step 2: Convert to fraction form
    18,418.71/25,417.76 = 10,459.35/x
  3. Step 3: Cross multiply
    18,418.71x = 25,417.76 × 10,459.35
  4. Step 4: Simplify right side
    18,418.71x = 265,853,195.76
  5. Step 5: Solve for x
    x = 265,853,195.76/18,418.71
  6. Step 6: Final answer
    x = 14,433.87

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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.