Home / 14,943.75-20,621.55-8,974.32

Finding the Fourth Proportional to 14,943.75, 20,621.55 and 8,974.32

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Solution

The fourth proportional to 14,943.75, 20,621.55 and 8,974.32 is: 12,384.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,943.75 : 20,621.55 = 8,974.32 : x
  2. Step 2: Convert to fraction form
    14,943.75/20,621.55 = 8,974.32/x
  3. Step 3: Cross multiply
    14,943.75x = 20,621.55 × 8,974.32
  4. Step 4: Simplify right side
    14,943.75x = 185,064,388.60
  5. Step 5: Solve for x
    x = 185,064,388.60/14,943.75
  6. Step 6: Final answer
    x = 12,384.07

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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.