Home / 10,518.79-15,786.35-3,950.95

Finding the Fourth Proportional to 10,518.79, 15,786.35 and 3,950.95

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Solution

The fourth proportional to 10,518.79, 15,786.35 and 3,950.95 is: 5,929.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,518.79 : 15,786.35 = 3,950.95 : x
  2. Step 2: Convert to fraction form
    10,518.79/15,786.35 = 3,950.95/x
  3. Step 3: Cross multiply
    10,518.79x = 15,786.35 × 3,950.95
  4. Step 4: Simplify right side
    10,518.79x = 62,371,079.53
  5. Step 5: Solve for x
    x = 62,371,079.53/10,518.79
  6. Step 6: Final answer
    x = 5,929.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.