Home / 9,413.12-12,989.65-5,435.52

Finding the Fourth Proportional to 9,413.12, 12,989.65 and 5,435.52

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Solution

The fourth proportional to 9,413.12, 12,989.65 and 5,435.52 is: 7,500.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,413.12 : 12,989.65 = 5,435.52 : x
  2. Step 2: Convert to fraction form
    9,413.12/12,989.65 = 5,435.52/x
  3. Step 3: Cross multiply
    9,413.12x = 12,989.65 × 5,435.52
  4. Step 4: Simplify right side
    9,413.12x = 70,605,491.46
  5. Step 5: Solve for x
    x = 70,605,491.46/9,413.12
  6. Step 6: Final answer
    x = 7,500.75

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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.