Home / 12,315.13-18,480.80-4,524.01

Finding the Fourth Proportional to 12,315.13, 18,480.80 and 4,524.01

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Solution

The fourth proportional to 12,315.13, 18,480.80 and 4,524.01 is: 6,788.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,315.13 : 18,480.80 = 4,524.01 : x
  2. Step 2: Convert to fraction form
    12,315.13/18,480.80 = 4,524.01/x
  3. Step 3: Cross multiply
    12,315.13x = 18,480.80 × 4,524.01
  4. Step 4: Simplify right side
    12,315.13x = 83,607,324.01
  5. Step 5: Solve for x
    x = 83,607,324.01/12,315.13
  6. Step 6: Final answer
    x = 6,788.99

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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.