Home / 8,355.07-11,530.11-5,371.89

Finding the Fourth Proportional to 8,355.07, 11,530.11 and 5,371.89

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Solution

The fourth proportional to 8,355.07, 11,530.11 and 5,371.89 is: 7,413.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,355.07 : 11,530.11 = 5,371.89 : x
  2. Step 2: Convert to fraction form
    8,355.07/11,530.11 = 5,371.89/x
  3. Step 3: Cross multiply
    8,355.07x = 11,530.11 × 5,371.89
  4. Step 4: Simplify right side
    8,355.07x = 61,938,482.61
  5. Step 5: Solve for x
    x = 61,938,482.61/8,355.07
  6. Step 6: Final answer
    x = 7,413.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.