Home / 11,118.95-15,341.64-6,641.83

Finding the Fourth Proportional to 11,118.95, 15,341.64 and 6,641.83

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Solution

The fourth proportional to 11,118.95, 15,341.64 and 6,641.83 is: 9,164.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,118.95 : 15,341.64 = 6,641.83 : x
  2. Step 2: Convert to fraction form
    11,118.95/15,341.64 = 6,641.83/x
  3. Step 3: Cross multiply
    11,118.95x = 15,341.64 × 6,641.83
  4. Step 4: Simplify right side
    11,118.95x = 101,896,543.05
  5. Step 5: Solve for x
    x = 101,896,543.05/11,118.95
  6. Step 6: Final answer
    x = 9,164.22

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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.