Home / 13,413.02-18,510.12-7,363.53

Finding the Fourth Proportional to 13,413.02, 18,510.12 and 7,363.53

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Solution

The fourth proportional to 13,413.02, 18,510.12 and 7,363.53 is: 10,161.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,413.02 : 18,510.12 = 7,363.53 : x
  2. Step 2: Convert to fraction form
    13,413.02/18,510.12 = 7,363.53/x
  3. Step 3: Cross multiply
    13,413.02x = 18,510.12 × 7,363.53
  4. Step 4: Simplify right side
    13,413.02x = 136,299,823.92
  5. Step 5: Solve for x
    x = 136,299,823.92/13,413.02
  6. Step 6: Final answer
    x = 10,161.76

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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.