Home / 13,413.41-18,510.50-7,445.07

Finding the Fourth Proportional to 13,413.41, 18,510.50 and 7,445.07

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Solution

The fourth proportional to 13,413.41, 18,510.50 and 7,445.07 is: 10,274.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,413.41 : 18,510.50 = 7,445.07 : x
  2. Step 2: Convert to fraction form
    13,413.41/18,510.50 = 7,445.07/x
  3. Step 3: Cross multiply
    13,413.41x = 18,510.50 × 7,445.07
  4. Step 4: Simplify right side
    13,413.41x = 137,811,968.24
  5. Step 5: Solve for x
    x = 137,811,968.24/13,413.41
  6. Step 6: Final answer
    x = 10,274.19

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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.