Home / 15,228.42-21,021.03-9,924.54

Finding the Fourth Proportional to 15,228.42, 21,021.03 and 9,924.54

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Solution

The fourth proportional to 15,228.42, 21,021.03 and 9,924.54 is: 13,699.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,228.42 : 21,021.03 = 9,924.54 : x
  2. Step 2: Convert to fraction form
    15,228.42/21,021.03 = 9,924.54/x
  3. Step 3: Cross multiply
    15,228.42x = 21,021.03 × 9,924.54
  4. Step 4: Simplify right side
    15,228.42x = 208,624,053.08
  5. Step 5: Solve for x
    x = 208,624,053.08/15,228.42
  6. Step 6: Final answer
    x = 13,699.65

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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.