Home / 18,740.96-25,862.55-10,783.03

Finding the Fourth Proportional to 18,740.96, 25,862.55 and 10,783.03

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Solution

The fourth proportional to 18,740.96, 25,862.55 and 10,783.03 is: 14,880.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,740.96 : 25,862.55 = 10,783.03 : x
  2. Step 2: Convert to fraction form
    18,740.96/25,862.55 = 10,783.03/x
  3. Step 3: Cross multiply
    18,740.96x = 25,862.55 × 10,783.03
  4. Step 4: Simplify right side
    18,740.96x = 278,876,652.53
  5. Step 5: Solve for x
    x = 278,876,652.53/18,740.96
  6. Step 6: Final answer
    x = 14,880.60

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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.