Home / 11,424.95-15,766.34-6,389.18

Finding the Fourth Proportional to 11,424.95, 15,766.34 and 6,389.18

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Solution

The fourth proportional to 11,424.95, 15,766.34 and 6,389.18 is: 8,817.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,424.95 : 15,766.34 = 6,389.18 : x
  2. Step 2: Convert to fraction form
    11,424.95/15,766.34 = 6,389.18/x
  3. Step 3: Cross multiply
    11,424.95x = 15,766.34 × 6,389.18
  4. Step 4: Simplify right side
    11,424.95x = 100,733,873.42
  5. Step 5: Solve for x
    x = 100,733,873.42/11,424.95
  6. Step 6: Final answer
    x = 8,817.01

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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.