Home / 14,728.50-20,325.24-8,356.32

Finding the Fourth Proportional to 14,728.50, 20,325.24 and 8,356.32

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Solution

The fourth proportional to 14,728.50, 20,325.24 and 8,356.32 is: 11,531.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,728.50 : 20,325.24 = 8,356.32 : x
  2. Step 2: Convert to fraction form
    14,728.50/20,325.24 = 8,356.32/x
  3. Step 3: Cross multiply
    14,728.50x = 20,325.24 × 8,356.32
  4. Step 4: Simplify right side
    14,728.50x = 169,844,209.52
  5. Step 5: Solve for x
    x = 169,844,209.52/14,728.50
  6. Step 6: Final answer
    x = 11,531.67

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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.