Home / 13,041.20-19,561.80-4,725.20

Finding the Fourth Proportional to 13,041.20, 19,561.80 and 4,725.20

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Solution

The fourth proportional to 13,041.20, 19,561.80 and 4,725.20 is: 7,087.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,041.20 : 19,561.80 = 4,725.20 : x
  2. Step 2: Convert to fraction form
    13,041.20/19,561.80 = 4,725.20/x
  3. Step 3: Cross multiply
    13,041.20x = 19,561.80 × 4,725.20
  4. Step 4: Simplify right side
    13,041.20x = 92,433,417.36
  5. Step 5: Solve for x
    x = 92,433,417.36/13,041.20
  6. Step 6: Final answer
    x = 7,087.80

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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.