Home / 18,347.18-25,320.67-10,390.82

Finding the Fourth Proportional to 18,347.18, 25,320.67 and 10,390.82

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Solution

The fourth proportional to 18,347.18, 25,320.67 and 10,390.82 is: 14,340.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,347.18 : 25,320.67 = 10,390.82 : x
  2. Step 2: Convert to fraction form
    18,347.18/25,320.67 = 10,390.82/x
  3. Step 3: Cross multiply
    18,347.18x = 25,320.67 × 10,390.82
  4. Step 4: Simplify right side
    18,347.18x = 263,102,371.67
  5. Step 5: Solve for x
    x = 263,102,371.67/18,347.18
  6. Step 6: Final answer
    x = 14,340.21

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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.