Home / 8,328.03-12,431.29-7,277.07

Finding the Fourth Proportional to 8,328.03, 12,431.29 and 7,277.07

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Solution

The fourth proportional to 8,328.03, 12,431.29 and 7,277.07 is: 10,862.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,328.03 : 12,431.29 = 7,277.07 : x
  2. Step 2: Convert to fraction form
    8,328.03/12,431.29 = 7,277.07/x
  3. Step 3: Cross multiply
    8,328.03x = 12,431.29 × 7,277.07
  4. Step 4: Simplify right side
    8,328.03x = 90,463,349.33
  5. Step 5: Solve for x
    x = 90,463,349.33/8,328.03
  6. Step 6: Final answer
    x = 10,862.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.