Home / 8,266.19-12,386.32-7,028.51

Finding the Fourth Proportional to 8,266.19, 12,386.32 and 7,028.51

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Solution

The fourth proportional to 8,266.19, 12,386.32 and 7,028.51 is: 10,531.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,266.19 : 12,386.32 = 7,028.51 : x
  2. Step 2: Convert to fraction form
    8,266.19/12,386.32 = 7,028.51/x
  3. Step 3: Cross multiply
    8,266.19x = 12,386.32 × 7,028.51
  4. Step 4: Simplify right side
    8,266.19x = 87,057,294.48
  5. Step 5: Solve for x
    x = 87,057,294.48/8,266.19
  6. Step 6: Final answer
    x = 10,531.74

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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.