Home / 17,405.04-26,116.56-8,639.76

Finding the Fourth Proportional to 17,405.04, 26,116.56 and 8,639.76

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Solution

The fourth proportional to 17,405.04, 26,116.56 and 8,639.76 is: 12,964.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,405.04 : 26,116.56 = 8,639.76 : x
  2. Step 2: Convert to fraction form
    17,405.04/26,116.56 = 8,639.76/x
  3. Step 3: Cross multiply
    17,405.04x = 26,116.56 × 8,639.76
  4. Step 4: Simplify right side
    17,405.04x = 225,640,810.43
  5. Step 5: Solve for x
    x = 225,640,810.43/17,405.04
  6. Step 6: Final answer
    x = 12,964.11

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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.