Home / 15,007.08-20,709.22-8,292.57

Finding the Fourth Proportional to 15,007.08, 20,709.22 and 8,292.57

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Solution

The fourth proportional to 15,007.08, 20,709.22 and 8,292.57 is: 11,443.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,007.08 : 20,709.22 = 8,292.57 : x
  2. Step 2: Convert to fraction form
    15,007.08/20,709.22 = 8,292.57/x
  3. Step 3: Cross multiply
    15,007.08x = 20,709.22 × 8,292.57
  4. Step 4: Simplify right side
    15,007.08x = 171,732,656.50
  5. Step 5: Solve for x
    x = 171,732,656.50/15,007.08
  6. Step 6: Final answer
    x = 11,443.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.