Home / 18,344.52-25,315.20-10,386.72

Finding the Fourth Proportional to 18,344.52, 25,315.20 and 10,386.72

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Solution

The fourth proportional to 18,344.52, 25,315.20 and 10,386.72 is: 14,333.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,344.52 : 25,315.20 = 10,386.72 : x
  2. Step 2: Convert to fraction form
    18,344.52/25,315.20 = 10,386.72/x
  3. Step 3: Cross multiply
    18,344.52x = 25,315.20 × 10,386.72
  4. Step 4: Simplify right side
    18,344.52x = 262,941,894.14
  5. Step 5: Solve for x
    x = 262,941,894.14/18,344.52
  6. Step 6: Final answer
    x = 14,333.54

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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.