Home / 13,353.28-20,015.84-6,413.12

Finding the Fourth Proportional to 13,353.28, 20,015.84 and 6,413.12

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Solution

The fourth proportional to 13,353.28, 20,015.84 and 6,413.12 is: 9,612.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,353.28 : 20,015.84 = 6,413.12 : x
  2. Step 2: Convert to fraction form
    13,353.28/20,015.84 = 6,413.12/x
  3. Step 3: Cross multiply
    13,353.28x = 20,015.84 × 6,413.12
  4. Step 4: Simplify right side
    13,353.28x = 128,363,983.82
  5. Step 5: Solve for x
    x = 128,363,983.82/13,353.28
  6. Step 6: Final answer
    x = 9,612.92

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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.