Home / 7,855.65-10,840.77-4,671.18

Finding the Fourth Proportional to 7,855.65, 10,840.77 and 4,671.18

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Solution

The fourth proportional to 7,855.65, 10,840.77 and 4,671.18 is: 6,446.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,855.65 : 10,840.77 = 4,671.18 : x
  2. Step 2: Convert to fraction form
    7,855.65/10,840.77 = 4,671.18/x
  3. Step 3: Cross multiply
    7,855.65x = 10,840.77 × 4,671.18
  4. Step 4: Simplify right side
    7,855.65x = 50,639,188.01
  5. Step 5: Solve for x
    x = 50,639,188.01/7,855.65
  6. Step 6: Final answer
    x = 6,446.21

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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.