Home / 11,117.04-15,334.29-7,131.84

Finding the Fourth Proportional to 11,117.04, 15,334.29 and 7,131.84

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Solution

The fourth proportional to 11,117.04, 15,334.29 and 7,131.84 is: 9,837.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,117.04 : 15,334.29 = 7,131.84 : x
  2. Step 2: Convert to fraction form
    11,117.04/15,334.29 = 7,131.84/x
  3. Step 3: Cross multiply
    11,117.04x = 15,334.29 × 7,131.84
  4. Step 4: Simplify right side
    11,117.04x = 109,361,702.79
  5. Step 5: Solve for x
    x = 109,361,702.79/11,117.04
  6. Step 6: Final answer
    x = 9,837.30

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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.