Home / 8,510.40-11,745.60-5,371.20

Finding the Fourth Proportional to 8,510.40, 11,745.60 and 5,371.20

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Solution

The fourth proportional to 8,510.40, 11,745.60 and 5,371.20 is: 7,413.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,510.40 : 11,745.60 = 5,371.20 : x
  2. Step 2: Convert to fraction form
    8,510.40/11,745.60 = 5,371.20/x
  3. Step 3: Cross multiply
    8,510.40x = 11,745.60 × 5,371.20
  4. Step 4: Simplify right side
    8,510.40x = 63,087,966.72
  5. Step 5: Solve for x
    x = 63,087,966.72/8,510.40
  6. Step 6: Final answer
    x = 7,413.04

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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.