Home / 10,403.32-15,605.74-3,477.80

Finding the Fourth Proportional to 10,403.32, 15,605.74 and 3,477.80

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Solution

The fourth proportional to 10,403.32, 15,605.74 and 3,477.80 is: 5,216.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,403.32 : 15,605.74 = 3,477.80 : x
  2. Step 2: Convert to fraction form
    10,403.32/15,605.74 = 3,477.80/x
  3. Step 3: Cross multiply
    10,403.32x = 15,605.74 × 3,477.80
  4. Step 4: Simplify right side
    10,403.32x = 54,273,642.57
  5. Step 5: Solve for x
    x = 54,273,642.57/10,403.32
  6. Step 6: Final answer
    x = 5,216.95

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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.