Home / 11,778.77-17,665.40-5,543.10

Finding the Fourth Proportional to 11,778.77, 17,665.40 and 5,543.10

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Solution

The fourth proportional to 11,778.77, 17,665.40 and 5,543.10 is: 8,313.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,778.77 : 17,665.40 = 5,543.10 : x
  2. Step 2: Convert to fraction form
    11,778.77/17,665.40 = 5,543.10/x
  3. Step 3: Cross multiply
    11,778.77x = 17,665.40 × 5,543.10
  4. Step 4: Simplify right side
    11,778.77x = 97,921,051.02
  5. Step 5: Solve for x
    x = 97,921,051.02/11,778.77
  6. Step 6: Final answer
    x = 8,313.35

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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.