Home / 13,521.04-18,630.92-12,637.84

Finding the Fourth Proportional to 13,521.04, 18,630.92 and 12,637.84

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Solution

The fourth proportional to 13,521.04, 18,630.92 and 12,637.84 is: 17,413.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,521.04 : 18,630.92 = 12,637.84 : x
  2. Step 2: Convert to fraction form
    13,521.04/18,630.92 = 12,637.84/x
  3. Step 3: Cross multiply
    13,521.04x = 18,630.92 × 12,637.84
  4. Step 4: Simplify right side
    13,521.04x = 235,454,586.01
  5. Step 5: Solve for x
    x = 235,454,586.01/13,521.04
  6. Step 6: Final answer
    x = 17,413.94

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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.