Home / 15,289.68-21,099.97-9,239.08

Finding the Fourth Proportional to 15,289.68, 21,099.97 and 9,239.08

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Solution

The fourth proportional to 15,289.68, 21,099.97 and 9,239.08 is: 12,750.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,289.68 : 21,099.97 = 9,239.08 : x
  2. Step 2: Convert to fraction form
    15,289.68/21,099.97 = 9,239.08/x
  3. Step 3: Cross multiply
    15,289.68x = 21,099.97 × 9,239.08
  4. Step 4: Simplify right side
    15,289.68x = 194,944,310.83
  5. Step 5: Solve for x
    x = 194,944,310.83/15,289.68
  6. Step 6: Final answer
    x = 12,750.06

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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.