Home / 11,385.06-15,712.82-6,908.55

Finding the Fourth Proportional to 11,385.06, 15,712.82 and 6,908.55

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Solution

The fourth proportional to 11,385.06, 15,712.82 and 6,908.55 is: 9,534.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,385.06 : 15,712.82 = 6,908.55 : x
  2. Step 2: Convert to fraction form
    11,385.06/15,712.82 = 6,908.55/x
  3. Step 3: Cross multiply
    11,385.06x = 15,712.82 × 6,908.55
  4. Step 4: Simplify right side
    11,385.06x = 108,552,802.61
  5. Step 5: Solve for x
    x = 108,552,802.61/11,385.06
  6. Step 6: Final answer
    x = 9,534.67

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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.