Home / 7,763.20-10,712.88-4,405.93

Finding the Fourth Proportional to 7,763.20, 10,712.88 and 4,405.93

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Solution

The fourth proportional to 7,763.20, 10,712.88 and 4,405.93 is: 6,079.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,763.20 : 10,712.88 = 4,405.93 : x
  2. Step 2: Convert to fraction form
    7,763.20/10,712.88 = 4,405.93/x
  3. Step 3: Cross multiply
    7,763.20x = 10,712.88 × 4,405.93
  4. Step 4: Simplify right side
    7,763.20x = 47,200,230.18
  5. Step 5: Solve for x
    x = 47,200,230.18/7,763.20
  6. Step 6: Final answer
    x = 6,079.99

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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.