Home / 14,962.68-20,647.26-8,247.78

Finding the Fourth Proportional to 14,962.68, 20,647.26 and 8,247.78

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Solution

The fourth proportional to 14,962.68, 20,647.26 and 8,247.78 is: 11,381.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,962.68 : 20,647.26 = 8,247.78 : x
  2. Step 2: Convert to fraction form
    14,962.68/20,647.26 = 8,247.78/x
  3. Step 3: Cross multiply
    14,962.68x = 20,647.26 × 8,247.78
  4. Step 4: Simplify right side
    14,962.68x = 170,294,058.08
  5. Step 5: Solve for x
    x = 170,294,058.08/14,962.68
  6. Step 6: Final answer
    x = 11,381.25

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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.