Home / 14,144.02-21,214.64-7,121.24

Finding the Fourth Proportional to 14,144.02, 21,214.64 and 7,121.24

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Solution

The fourth proportional to 14,144.02, 21,214.64 and 7,121.24 is: 10,681.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,144.02 : 21,214.64 = 7,121.24 : x
  2. Step 2: Convert to fraction form
    14,144.02/21,214.64 = 7,121.24/x
  3. Step 3: Cross multiply
    14,144.02x = 21,214.64 × 7,121.24
  4. Step 4: Simplify right side
    14,144.02x = 151,074,542.95
  5. Step 5: Solve for x
    x = 151,074,542.95/14,144.02
  6. Step 6: Final answer
    x = 10,681.16

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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.