Home / 15,529.20-23,293.80-5,139.60

Finding the Fourth Proportional to 15,529.20, 23,293.80 and 5,139.60

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Solution

The fourth proportional to 15,529.20, 23,293.80 and 5,139.60 is: 7,709.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,529.20 : 23,293.80 = 5,139.60 : x
  2. Step 2: Convert to fraction form
    15,529.20/23,293.80 = 5,139.60/x
  3. Step 3: Cross multiply
    15,529.20x = 23,293.80 × 5,139.60
  4. Step 4: Simplify right side
    15,529.20x = 119,720,814.48
  5. Step 5: Solve for x
    x = 119,720,814.48/15,529.20
  6. Step 6: Final answer
    x = 7,709.40

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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.