Home / 7,861.10-10,845.62-4,875.86

Finding the Fourth Proportional to 7,861.10, 10,845.62 and 4,875.86

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Solution

The fourth proportional to 7,861.10, 10,845.62 and 4,875.86 is: 6,727.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,861.10 : 10,845.62 = 4,875.86 : x
  2. Step 2: Convert to fraction form
    7,861.10/10,845.62 = 4,875.86/x
  3. Step 3: Cross multiply
    7,861.10x = 10,845.62 × 4,875.86
  4. Step 4: Simplify right side
    7,861.10x = 52,881,724.73
  5. Step 5: Solve for x
    x = 52,881,724.73/7,861.10
  6. Step 6: Final answer
    x = 6,727.01

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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.