Home / 11,585.87-15,989.51-7,336.49

Finding the Fourth Proportional to 11,585.87, 15,989.51 and 7,336.49

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Solution

The fourth proportional to 11,585.87, 15,989.51 and 7,336.49 is: 10,124.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,585.87 : 15,989.51 = 7,336.49 : x
  2. Step 2: Convert to fraction form
    11,585.87/15,989.51 = 7,336.49/x
  3. Step 3: Cross multiply
    11,585.87x = 15,989.51 × 7,336.49
  4. Step 4: Simplify right side
    11,585.87x = 117,306,818.61
  5. Step 5: Solve for x
    x = 117,306,818.61/11,585.87
  6. Step 6: Final answer
    x = 10,124.99

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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.