Home / 8,955.90-13,437.81-3,116.70

Finding the Fourth Proportional to 8,955.90, 13,437.81 and 3,116.70

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Solution

The fourth proportional to 8,955.90, 13,437.81 and 3,116.70 is: 4,676.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,955.90 : 13,437.81 = 3,116.70 : x
  2. Step 2: Convert to fraction form
    8,955.90/13,437.81 = 3,116.70/x
  3. Step 3: Cross multiply
    8,955.90x = 13,437.81 × 3,116.70
  4. Step 4: Simplify right side
    8,955.90x = 41,881,622.43
  5. Step 5: Solve for x
    x = 41,881,622.43/8,955.90
  6. Step 6: Final answer
    x = 4,676.43

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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.