Home / 8,428.35-12,628.58-7,559.13

Finding the Fourth Proportional to 8,428.35, 12,628.58 and 7,559.13

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Solution

The fourth proportional to 8,428.35, 12,628.58 and 7,559.13 is: 11,326.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,428.35 : 12,628.58 = 7,559.13 : x
  2. Step 2: Convert to fraction form
    8,428.35/12,628.58 = 7,559.13/x
  3. Step 3: Cross multiply
    8,428.35x = 12,628.58 × 7,559.13
  4. Step 4: Simplify right side
    8,428.35x = 95,461,115.76
  5. Step 5: Solve for x
    x = 95,461,115.76/8,428.35
  6. Step 6: Final answer
    x = 11,326.19

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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.