Home / 13,595.07-20,380.14-5,280.69

Finding the Fourth Proportional to 13,595.07, 20,380.14 and 5,280.69

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Solution

The fourth proportional to 13,595.07, 20,380.14 and 5,280.69 is: 7,916.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,595.07 : 20,380.14 = 5,280.69 : x
  2. Step 2: Convert to fraction form
    13,595.07/20,380.14 = 5,280.69/x
  3. Step 3: Cross multiply
    13,595.07x = 20,380.14 × 5,280.69
  4. Step 4: Simplify right side
    13,595.07x = 107,621,201.50
  5. Step 5: Solve for x
    x = 107,621,201.50/13,595.07
  6. Step 6: Final answer
    x = 7,916.19

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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.