Home / 8,390.06-11,577.70-5,031.19

Finding the Fourth Proportional to 8,390.06, 11,577.70 and 5,031.19

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Solution

The fourth proportional to 8,390.06, 11,577.70 and 5,031.19 is: 6,942.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,390.06 : 11,577.70 = 5,031.19 : x
  2. Step 2: Convert to fraction form
    8,390.06/11,577.70 = 5,031.19/x
  3. Step 3: Cross multiply
    8,390.06x = 11,577.70 × 5,031.19
  4. Step 4: Simplify right side
    8,390.06x = 58,249,608.46
  5. Step 5: Solve for x
    x = 58,249,608.46/8,390.06
  6. Step 6: Final answer
    x = 6,942.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.