Home / 13,413.30-18,510.65-7,445.04

Finding the Fourth Proportional to 13,413.30, 18,510.65 and 7,445.04

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Solution

The fourth proportional to 13,413.30, 18,510.65 and 7,445.04 is: 10,274.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,413.30 : 18,510.65 = 7,445.04 : x
  2. Step 2: Convert to fraction form
    13,413.30/18,510.65 = 7,445.04/x
  3. Step 3: Cross multiply
    13,413.30x = 18,510.65 × 7,445.04
  4. Step 4: Simplify right side
    13,413.30x = 137,812,529.68
  5. Step 5: Solve for x
    x = 137,812,529.68/13,413.30
  6. Step 6: Final answer
    x = 10,274.32

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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.