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Finding the Fourth Proportional to 26,986.30, 40,479.42 and 7,264.84

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Solution

The fourth proportional to 26,986.30, 40,479.42 and 7,264.84 is: 10,897.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,986.30 : 40,479.42 = 7,264.84 : x
  2. Step 2: Convert to fraction form
    26,986.30/40,479.42 = 7,264.84/x
  3. Step 3: Cross multiply
    26,986.30x = 40,479.42 × 7,264.84
  4. Step 4: Simplify right side
    26,986.30x = 294,076,509.59
  5. Step 5: Solve for x
    x = 294,076,509.59/26,986.30
  6. Step 6: Final answer
    x = 10,897.25

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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.