Home / 11,291.08-15,587.18-7,520.52

Finding the Fourth Proportional to 11,291.08, 15,587.18 and 7,520.52

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Solution

The fourth proportional to 11,291.08, 15,587.18 and 7,520.52 is: 10,381.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,291.08 : 15,587.18 = 7,520.52 : x
  2. Step 2: Convert to fraction form
    11,291.08/15,587.18 = 7,520.52/x
  3. Step 3: Cross multiply
    11,291.08x = 15,587.18 × 7,520.52
  4. Step 4: Simplify right side
    11,291.08x = 117,223,698.93
  5. Step 5: Solve for x
    x = 117,223,698.93/11,291.08
  6. Step 6: Final answer
    x = 10,381.97

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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.