Home / 15,948.42-21,975.21-10,913.46

Finding the Fourth Proportional to 15,948.42, 21,975.21 and 10,913.46

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Solution

The fourth proportional to 15,948.42, 21,975.21 and 10,913.46 is: 15,037.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,948.42 : 21,975.21 = 10,913.46 : x
  2. Step 2: Convert to fraction form
    15,948.42/21,975.21 = 10,913.46/x
  3. Step 3: Cross multiply
    15,948.42x = 21,975.21 × 10,913.46
  4. Step 4: Simplify right side
    15,948.42x = 239,825,575.33
  5. Step 5: Solve for x
    x = 239,825,575.33/15,948.42
  6. Step 6: Final answer
    x = 15,037.58

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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.