Home / 13,990.79-20,987.57-4,504.19

Finding the Fourth Proportional to 13,990.79, 20,987.57 and 4,504.19

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Solution

The fourth proportional to 13,990.79, 20,987.57 and 4,504.19 is: 6,756.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,990.79 : 20,987.57 = 4,504.19 : x
  2. Step 2: Convert to fraction form
    13,990.79/20,987.57 = 4,504.19/x
  3. Step 3: Cross multiply
    13,990.79x = 20,987.57 × 4,504.19
  4. Step 4: Simplify right side
    13,990.79x = 94,532,096.84
  5. Step 5: Solve for x
    x = 94,532,096.84/13,990.79
  6. Step 6: Final answer
    x = 6,756.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.