Home / 7,881.30-10,875.67-4,523.65

Finding the Fourth Proportional to 7,881.30, 10,875.67 and 4,523.65

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Solution

The fourth proportional to 7,881.30, 10,875.67 and 4,523.65 is: 6,242.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881.30 : 10,875.67 = 4,523.65 : x
  2. Step 2: Convert to fraction form
    7,881.30/10,875.67 = 4,523.65/x
  3. Step 3: Cross multiply
    7,881.30x = 10,875.67 × 4,523.65
  4. Step 4: Simplify right side
    7,881.30x = 49,197,686.10
  5. Step 5: Solve for x
    x = 49,197,686.10/7,881.30
  6. Step 6: Final answer
    x = 6,242.33

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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.