Home / 18,302.29-25,256.11-10,125.40

Finding the Fourth Proportional to 18,302.29, 25,256.11 and 10,125.40

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Solution

The fourth proportional to 18,302.29, 25,256.11 and 10,125.40 is: 13,972.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,302.29 : 25,256.11 = 10,125.40 : x
  2. Step 2: Convert to fraction form
    18,302.29/25,256.11 = 10,125.40/x
  3. Step 3: Cross multiply
    18,302.29x = 25,256.11 × 10,125.40
  4. Step 4: Simplify right side
    18,302.29x = 255,728,216.19
  5. Step 5: Solve for x
    x = 255,728,216.19/18,302.29
  6. Step 6: Final answer
    x = 13,972.47

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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.