Home / 14,008.98-21,012.66-5,130.30

Finding the Fourth Proportional to 14,008.98, 21,012.66 and 5,130.30

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Solution

The fourth proportional to 14,008.98, 21,012.66 and 5,130.30 is: 7,695.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,008.98 : 21,012.66 = 5,130.30 : x
  2. Step 2: Convert to fraction form
    14,008.98/21,012.66 = 5,130.30/x
  3. Step 3: Cross multiply
    14,008.98x = 21,012.66 × 5,130.30
  4. Step 4: Simplify right side
    14,008.98x = 107,801,249.60
  5. Step 5: Solve for x
    x = 107,801,249.60/14,008.98
  6. Step 6: Final answer
    x = 7,695.15

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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.