Home / 8,439.51-11,545.30-8,403.97

Finding the Fourth Proportional to 8,439.51, 11,545.30 and 8,403.97

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Solution

The fourth proportional to 8,439.51, 11,545.30 and 8,403.97 is: 11,496.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,439.51 : 11,545.30 = 8,403.97 : x
  2. Step 2: Convert to fraction form
    8,439.51/11,545.30 = 8,403.97/x
  3. Step 3: Cross multiply
    8,439.51x = 11,545.30 × 8,403.97
  4. Step 4: Simplify right side
    8,439.51x = 97,026,354.84
  5. Step 5: Solve for x
    x = 97,026,354.84/8,439.51
  6. Step 6: Final answer
    x = 11,496.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.