Home / 7,921.76-10,927.65-5,089.56

Finding the Fourth Proportional to 7,921.76, 10,927.65 and 5,089.56

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Solution

The fourth proportional to 7,921.76, 10,927.65 and 5,089.56 is: 7,020.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,921.76 : 10,927.65 = 5,089.56 : x
  2. Step 2: Convert to fraction form
    7,921.76/10,927.65 = 5,089.56/x
  3. Step 3: Cross multiply
    7,921.76x = 10,927.65 × 5,089.56
  4. Step 4: Simplify right side
    7,921.76x = 55,616,903.01
  5. Step 5: Solve for x
    x = 55,616,903.01/7,921.76
  6. Step 6: Final answer
    x = 7,020.78

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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.