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Finding the Fourth Proportional to 7,886.01, 11,831.18 and 2,692.29

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Solution

The fourth proportional to 7,886.01, 11,831.18 and 2,692.29 is: 4,039.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,886.01 : 11,831.18 = 2,692.29 : x
  2. Step 2: Convert to fraction form
    7,886.01/11,831.18 = 2,692.29/x
  3. Step 3: Cross multiply
    7,886.01x = 11,831.18 × 2,692.29
  4. Step 4: Simplify right side
    7,886.01x = 31,852,954.14
  5. Step 5: Solve for x
    x = 31,852,954.14/7,886.01
  6. Step 6: Final answer
    x = 4,039.17

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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.