Home / 13,040.29-19,560.42-4,720.28

Finding the Fourth Proportional to 13,040.29, 19,560.42 and 4,720.28

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Solution

The fourth proportional to 13,040.29, 19,560.42 and 4,720.28 is: 7,080.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,040.29 : 19,560.42 = 4,720.28 : x
  2. Step 2: Convert to fraction form
    13,040.29/19,560.42 = 4,720.28/x
  3. Step 3: Cross multiply
    13,040.29x = 19,560.42 × 4,720.28
  4. Step 4: Simplify right side
    13,040.29x = 92,330,561.52
  5. Step 5: Solve for x
    x = 92,330,561.52/13,040.29
  6. Step 6: Final answer
    x = 7,080.41

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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.