Home / 11,939.20-16,465.04-7,461.52

Finding the Fourth Proportional to 11,939.20, 16,465.04 and 7,461.52

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Solution

The fourth proportional to 11,939.20, 16,465.04 and 7,461.52 is: 10,289.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,939.20 : 16,465.04 = 7,461.52 : x
  2. Step 2: Convert to fraction form
    11,939.20/16,465.04 = 7,461.52/x
  3. Step 3: Cross multiply
    11,939.20x = 16,465.04 × 7,461.52
  4. Step 4: Simplify right side
    11,939.20x = 122,854,225.26
  5. Step 5: Solve for x
    x = 122,854,225.26/11,939.20
  6. Step 6: Final answer
    x = 10,289.99

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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.