Home / 14,943.25-20,621.69-8,319.25

Finding the Fourth Proportional to 14,943.25, 20,621.69 and 8,319.25

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Solution

The fourth proportional to 14,943.25, 20,621.69 and 8,319.25 is: 11,480.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,943.25 : 20,621.69 = 8,319.25 : x
  2. Step 2: Convert to fraction form
    14,943.25/20,621.69 = 8,319.25/x
  3. Step 3: Cross multiply
    14,943.25x = 20,621.69 × 8,319.25
  4. Step 4: Simplify right side
    14,943.25x = 171,556,994.53
  5. Step 5: Solve for x
    x = 171,556,994.53/14,943.25
  6. Step 6: Final answer
    x = 11,480.57

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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.