Home / 13,073.76-19,610.64-5,280.75

Finding the Fourth Proportional to 13,073.76, 19,610.64 and 5,280.75

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Solution

The fourth proportional to 13,073.76, 19,610.64 and 5,280.75 is: 7,921.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,073.76 : 19,610.64 = 5,280.75 : x
  2. Step 2: Convert to fraction form
    13,073.76/19,610.64 = 5,280.75/x
  3. Step 3: Cross multiply
    13,073.76x = 19,610.64 × 5,280.75
  4. Step 4: Simplify right side
    13,073.76x = 103,558,887.18
  5. Step 5: Solve for x
    x = 103,558,887.18/13,073.76
  6. Step 6: Final answer
    x = 7,921.13

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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.