Home / 7,726.23-10,666.80-5,078.22

Finding the Fourth Proportional to 7,726.23, 10,666.80 and 5,078.22

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Solution

The fourth proportional to 7,726.23, 10,666.80 and 5,078.22 is: 7,010.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,726.23 : 10,666.80 = 5,078.22 : x
  2. Step 2: Convert to fraction form
    7,726.23/10,666.80 = 5,078.22/x
  3. Step 3: Cross multiply
    7,726.23x = 10,666.80 × 5,078.22
  4. Step 4: Simplify right side
    7,726.23x = 54,168,278.37
  5. Step 5: Solve for x
    x = 54,168,278.37/7,726.23
  6. Step 6: Final answer
    x = 7,010.96

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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.