Home / 8,905.90-13,358.88-6,124.18

Finding the Fourth Proportional to 8,905.90, 13,358.88 and 6,124.18

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Solution

The fourth proportional to 8,905.90, 13,358.88 and 6,124.18 is: 9,186.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,905.90 : 13,358.88 = 6,124.18 : x
  2. Step 2: Convert to fraction form
    8,905.90/13,358.88 = 6,124.18/x
  3. Step 3: Cross multiply
    8,905.90x = 13,358.88 × 6,124.18
  4. Step 4: Simplify right side
    8,905.90x = 81,812,185.72
  5. Step 5: Solve for x
    x = 81,812,185.72/8,905.90
  6. Step 6: Final answer
    x = 9,186.29

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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.