Home / 8,905.25-12,294.15-6,666.32

Finding the Fourth Proportional to 8,905.25, 12,294.15 and 6,666.32

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Solution

The fourth proportional to 8,905.25, 12,294.15 and 6,666.32 is: 9,203.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,905.25 : 12,294.15 = 6,666.32 : x
  2. Step 2: Convert to fraction form
    8,905.25/12,294.15 = 6,666.32/x
  3. Step 3: Cross multiply
    8,905.25x = 12,294.15 × 6,666.32
  4. Step 4: Simplify right side
    8,905.25x = 81,956,738.03
  5. Step 5: Solve for x
    x = 81,956,738.03/8,905.25
  6. Step 6: Final answer
    x = 9,203.19

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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.