Home / 7,826.57-11,726.65-3,872.55

Finding the Fourth Proportional to 7,826.57, 11,726.65 and 3,872.55

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Solution

The fourth proportional to 7,826.57, 11,726.65 and 3,872.55 is: 5,802.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,826.57 : 11,726.65 = 3,872.55 : x
  2. Step 2: Convert to fraction form
    7,826.57/11,726.65 = 3,872.55/x
  3. Step 3: Cross multiply
    7,826.57x = 11,726.65 × 3,872.55
  4. Step 4: Simplify right side
    7,826.57x = 45,412,038.46
  5. Step 5: Solve for x
    x = 45,412,038.46/7,826.57
  6. Step 6: Final answer
    x = 5,802.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.