Home / 8,374.26-12,580.98-7,901.40

Finding the Fourth Proportional to 8,374.26, 12,580.98 and 7,901.40

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Solution

The fourth proportional to 8,374.26, 12,580.98 and 7,901.40 is: 11,870.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,374.26 : 12,580.98 = 7,901.40 : x
  2. Step 2: Convert to fraction form
    8,374.26/12,580.98 = 7,901.40/x
  3. Step 3: Cross multiply
    8,374.26x = 12,580.98 × 7,901.40
  4. Step 4: Simplify right side
    8,374.26x = 99,407,355.37
  5. Step 5: Solve for x
    x = 99,407,355.37/8,374.26
  6. Step 6: Final answer
    x = 11,870.58

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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.