Home / 12,428.26-18,642.58-6,572.76

Finding the Fourth Proportional to 12,428.26, 18,642.58 and 6,572.76

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Solution

The fourth proportional to 12,428.26, 18,642.58 and 6,572.76 is: 9,859.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,428.26 : 18,642.58 = 6,572.76 : x
  2. Step 2: Convert to fraction form
    12,428.26/18,642.58 = 6,572.76/x
  3. Step 3: Cross multiply
    12,428.26x = 18,642.58 × 6,572.76
  4. Step 4: Simplify right side
    12,428.26x = 122,533,204.12
  5. Step 5: Solve for x
    x = 122,533,204.12/12,428.26
  6. Step 6: Final answer
    x = 9,859.24

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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.