Home / 7,861.12-10,845.62-4,875.88

Finding the Fourth Proportional to 7,861.12, 10,845.62 and 4,875.88

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Solution

The fourth proportional to 7,861.12, 10,845.62 and 4,875.88 is: 6,727.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,861.12 : 10,845.62 = 4,875.88 : x
  2. Step 2: Convert to fraction form
    7,861.12/10,845.62 = 4,875.88/x
  3. Step 3: Cross multiply
    7,861.12x = 10,845.62 × 4,875.88
  4. Step 4: Simplify right side
    7,861.12x = 52,881,941.65
  5. Step 5: Solve for x
    x = 52,881,941.65/7,861.12
  6. Step 6: Final answer
    x = 6,727.02

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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.