Home / 10,087.74-15,138.09-5,708.34

Finding the Fourth Proportional to 10,087.74, 15,138.09 and 5,708.34

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Solution

The fourth proportional to 10,087.74, 15,138.09 and 5,708.34 is: 8,566.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,087.74 : 15,138.09 = 5,708.34 : x
  2. Step 2: Convert to fraction form
    10,087.74/15,138.09 = 5,708.34/x
  3. Step 3: Cross multiply
    10,087.74x = 15,138.09 × 5,708.34
  4. Step 4: Simplify right side
    10,087.74x = 86,413,364.67
  5. Step 5: Solve for x
    x = 86,413,364.67/10,087.74
  6. Step 6: Final answer
    x = 8,566.18

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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.