Home / 11,152.90-15,390.27-6,373.09

Finding the Fourth Proportional to 11,152.90, 15,390.27 and 6,373.09

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Solution

The fourth proportional to 11,152.90, 15,390.27 and 6,373.09 is: 8,794.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,152.90 : 15,390.27 = 6,373.09 : x
  2. Step 2: Convert to fraction form
    11,152.90/15,390.27 = 6,373.09/x
  3. Step 3: Cross multiply
    11,152.90x = 15,390.27 × 6,373.09
  4. Step 4: Simplify right side
    11,152.90x = 98,083,575.83
  5. Step 5: Solve for x
    x = 98,083,575.83/11,152.90
  6. Step 6: Final answer
    x = 8,794.45

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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.