Home / 13,783.24-18,982.02-13,740.04

Finding the Fourth Proportional to 13,783.24, 18,982.02 and 13,740.04

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Solution

The fourth proportional to 13,783.24, 18,982.02 and 13,740.04 is: 18,922.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,783.24 : 18,982.02 = 13,740.04 : x
  2. Step 2: Convert to fraction form
    13,783.24/18,982.02 = 13,740.04/x
  3. Step 3: Cross multiply
    13,783.24x = 18,982.02 × 13,740.04
  4. Step 4: Simplify right side
    13,783.24x = 260,813,714.08
  5. Step 5: Solve for x
    x = 260,813,714.08/13,783.24
  6. Step 6: Final answer
    x = 18,922.53

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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.