Home / 7,867.85-10,857.67-4,510.74

Finding the Fourth Proportional to 7,867.85, 10,857.67 and 4,510.74

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Solution

The fourth proportional to 7,867.85, 10,857.67 and 4,510.74 is: 6,224.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,867.85 : 10,857.67 = 4,510.74 : x
  2. Step 2: Convert to fraction form
    7,867.85/10,857.67 = 4,510.74/x
  3. Step 3: Cross multiply
    7,867.85x = 10,857.67 × 4,510.74
  4. Step 4: Simplify right side
    7,867.85x = 48,976,115.10
  5. Step 5: Solve for x
    x = 48,976,115.10/7,867.85
  6. Step 6: Final answer
    x = 6,224.84

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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.