Home / 13,901.10-20,847.60-5,015.40

Finding the Fourth Proportional to 13,901.10, 20,847.60 and 5,015.40

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Solution

The fourth proportional to 13,901.10, 20,847.60 and 5,015.40 is: 7,521.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,901.10 : 20,847.60 = 5,015.40 : x
  2. Step 2: Convert to fraction form
    13,901.10/20,847.60 = 5,015.40/x
  3. Step 3: Cross multiply
    13,901.10x = 20,847.60 × 5,015.40
  4. Step 4: Simplify right side
    13,901.10x = 104,559,053.04
  5. Step 5: Solve for x
    x = 104,559,053.04/13,901.10
  6. Step 6: Final answer
    x = 7,521.64

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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.