Home / 15,007.24-20,709.71-8,292.72

Finding the Fourth Proportional to 15,007.24, 20,709.71 and 8,292.72

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Solution

The fourth proportional to 15,007.24, 20,709.71 and 8,292.72 is: 11,443.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,007.24 : 20,709.71 = 8,292.72 : x
  2. Step 2: Convert to fraction form
    15,007.24/20,709.71 = 8,292.72/x
  3. Step 3: Cross multiply
    15,007.24x = 20,709.71 × 8,292.72
  4. Step 4: Simplify right side
    15,007.24x = 171,739,893.61
  5. Step 5: Solve for x
    x = 171,739,893.61/15,007.24
  6. Step 6: Final answer
    x = 11,443.80

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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.