Home / 15,476.90-21,358.55-9,103.95

Finding the Fourth Proportional to 15,476.90, 21,358.55 and 9,103.95

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Solution

The fourth proportional to 15,476.90, 21,358.55 and 9,103.95 is: 12,563.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,476.90 : 21,358.55 = 9,103.95 : x
  2. Step 2: Convert to fraction form
    15,476.90/21,358.55 = 9,103.95/x
  3. Step 3: Cross multiply
    15,476.90x = 21,358.55 × 9,103.95
  4. Step 4: Simplify right side
    15,476.90x = 194,447,194.03
  5. Step 5: Solve for x
    x = 194,447,194.03/15,476.90
  6. Step 6: Final answer
    x = 12,563.71

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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.