Home / 11,450.18-15,802.56-6,415.76

Finding the Fourth Proportional to 11,450.18, 15,802.56 and 6,415.76

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Solution

The fourth proportional to 11,450.18, 15,802.56 and 6,415.76 is: 8,854.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,450.18 : 15,802.56 = 6,415.76 : x
  2. Step 2: Convert to fraction form
    11,450.18/15,802.56 = 6,415.76/x
  3. Step 3: Cross multiply
    11,450.18x = 15,802.56 × 6,415.76
  4. Step 4: Simplify right side
    11,450.18x = 101,385,432.35
  5. Step 5: Solve for x
    x = 101,385,432.35/11,450.18
  6. Step 6: Final answer
    x = 8,854.48

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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.