Home / 9,123.10-12,590.49-6,881.02

Finding the Fourth Proportional to 9,123.10, 12,590.49 and 6,881.02

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Solution

The fourth proportional to 9,123.10, 12,590.49 and 6,881.02 is: 9,496.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,123.10 : 12,590.49 = 6,881.02 : x
  2. Step 2: Convert to fraction form
    9,123.10/12,590.49 = 6,881.02/x
  3. Step 3: Cross multiply
    9,123.10x = 12,590.49 × 6,881.02
  4. Step 4: Simplify right side
    9,123.10x = 86,635,413.50
  5. Step 5: Solve for x
    x = 86,635,413.50/9,123.10
  6. Step 6: Final answer
    x = 9,496.27

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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.