Home / 10,458.84-15,690.98-3,886.92

Finding the Fourth Proportional to 10,458.84, 15,690.98 and 3,886.92

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Solution

The fourth proportional to 10,458.84, 15,690.98 and 3,886.92 is: 5,831.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,458.84 : 15,690.98 = 3,886.92 : x
  2. Step 2: Convert to fraction form
    10,458.84/15,690.98 = 3,886.92/x
  3. Step 3: Cross multiply
    10,458.84x = 15,690.98 × 3,886.92
  4. Step 4: Simplify right side
    10,458.84x = 60,989,583.98
  5. Step 5: Solve for x
    x = 60,989,583.98/10,458.84
  6. Step 6: Final answer
    x = 5,831.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.