Home / 7,810.76-10,781.16-5,453.66

Finding the Fourth Proportional to 7,810.76, 10,781.16 and 5,453.66

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Solution

The fourth proportional to 7,810.76, 10,781.16 and 5,453.66 is: 7,527.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,810.76 : 10,781.16 = 5,453.66 : x
  2. Step 2: Convert to fraction form
    7,810.76/10,781.16 = 5,453.66/x
  3. Step 3: Cross multiply
    7,810.76x = 10,781.16 × 5,453.66
  4. Step 4: Simplify right side
    7,810.76x = 58,796,781.05
  5. Step 5: Solve for x
    x = 58,796,781.05/7,810.76
  6. Step 6: Final answer
    x = 7,527.66

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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.