Home / 11,261.91-15,542.75-9,370.15

Finding the Fourth Proportional to 11,261.91, 15,542.75 and 9,370.15

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Solution

The fourth proportional to 11,261.91, 15,542.75 and 9,370.15 is: 12,931.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,261.91 : 15,542.75 = 9,370.15 : x
  2. Step 2: Convert to fraction form
    11,261.91/15,542.75 = 9,370.15/x
  3. Step 3: Cross multiply
    11,261.91x = 15,542.75 × 9,370.15
  4. Step 4: Simplify right side
    11,261.91x = 145,637,898.91
  5. Step 5: Solve for x
    x = 145,637,898.91/11,261.91
  6. Step 6: Final answer
    x = 12,931.90

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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.