Home / 15,441.21-21,308.93-8,367.68

Finding the Fourth Proportional to 15,441.21, 21,308.93 and 8,367.68

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Solution

The fourth proportional to 15,441.21, 21,308.93 and 8,367.68 is: 11,547.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,441.21 : 21,308.93 = 8,367.68 : x
  2. Step 2: Convert to fraction form
    15,441.21/21,308.93 = 8,367.68/x
  3. Step 3: Cross multiply
    15,441.21x = 21,308.93 × 8,367.68
  4. Step 4: Simplify right side
    15,441.21x = 178,306,307.38
  5. Step 5: Solve for x
    x = 178,306,307.38/15,441.21
  6. Step 6: Final answer
    x = 11,547.43

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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.