Home / 18,805.18-25,950.58-10,307.12

Finding the Fourth Proportional to 18,805.18, 25,950.58 and 10,307.12

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Solution

The fourth proportional to 18,805.18, 25,950.58 and 10,307.12 is: 14,223.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,805.18 : 25,950.58 = 10,307.12 : x
  2. Step 2: Convert to fraction form
    18,805.18/25,950.58 = 10,307.12/x
  3. Step 3: Cross multiply
    18,805.18x = 25,950.58 × 10,307.12
  4. Step 4: Simplify right side
    18,805.18x = 267,475,560.84
  5. Step 5: Solve for x
    x = 267,475,560.84/18,805.18
  6. Step 6: Final answer
    x = 14,223.51

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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.