Home / 17,628.50-26,440.14-5,145.18

Finding the Fourth Proportional to 17,628.50, 26,440.14 and 5,145.18

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Solution

The fourth proportional to 17,628.50, 26,440.14 and 5,145.18 is: 7,717.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,628.50 : 26,440.14 = 5,145.18 : x
  2. Step 2: Convert to fraction form
    17,628.50/26,440.14 = 5,145.18/x
  3. Step 3: Cross multiply
    17,628.50x = 26,440.14 × 5,145.18
  4. Step 4: Simplify right side
    17,628.50x = 136,039,279.53
  5. Step 5: Solve for x
    x = 136,039,279.53/17,628.50
  6. Step 6: Final answer
    x = 7,717.01

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Double scale
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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.