Home / 15,369.45-21,205.24-9,394.84

Finding the Fourth Proportional to 15,369.45, 21,205.24 and 9,394.84

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Solution

The fourth proportional to 15,369.45, 21,205.24 and 9,394.84 is: 12,962.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,369.45 : 21,205.24 = 9,394.84 : x
  2. Step 2: Convert to fraction form
    15,369.45/21,205.24 = 9,394.84/x
  3. Step 3: Cross multiply
    15,369.45x = 21,205.24 × 9,394.84
  4. Step 4: Simplify right side
    15,369.45x = 199,219,773.55
  5. Step 5: Solve for x
    x = 199,219,773.55/15,369.45
  6. Step 6: Final answer
    x = 12,962.07

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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.