Home / 7,861.04-10,842.66-5,439.32

Finding the Fourth Proportional to 7,861.04, 10,842.66 and 5,439.32

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Solution

The fourth proportional to 7,861.04, 10,842.66 and 5,439.32 is: 7,502.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,861.04 : 10,842.66 = 5,439.32 : x
  2. Step 2: Convert to fraction form
    7,861.04/10,842.66 = 5,439.32/x
  3. Step 3: Cross multiply
    7,861.04x = 10,842.66 × 5,439.32
  4. Step 4: Simplify right side
    7,861.04x = 58,976,697.39
  5. Step 5: Solve for x
    x = 58,976,697.39/7,861.04
  6. Step 6: Final answer
    x = 7,502.40

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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.