Home / 13,955.16-20,934.90-4,719

Finding the Fourth Proportional to 13,955.16, 20,934.90 and 4,719

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Solution

The fourth proportional to 13,955.16, 20,934.90 and 4,719 is: 7,079.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,955.16 : 20,934.90 = 4,719 : x
  2. Step 2: Convert to fraction form
    13,955.16/20,934.90 = 4,719/x
  3. Step 3: Cross multiply
    13,955.16x = 20,934.90 × 4,719
  4. Step 4: Simplify right side
    13,955.16x = 98,791,793.10
  5. Step 5: Solve for x
    x = 98,791,793.10/13,955.16
  6. Step 6: Final answer
    x = 7,079.23

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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.