Home / 15,627.84-21,563.52-9,338.88

Finding the Fourth Proportional to 15,627.84, 21,563.52 and 9,338.88

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Solution

The fourth proportional to 15,627.84, 21,563.52 and 9,338.88 is: 12,885.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,627.84 : 21,563.52 = 9,338.88 : x
  2. Step 2: Convert to fraction form
    15,627.84/21,563.52 = 9,338.88/x
  3. Step 3: Cross multiply
    15,627.84x = 21,563.52 × 9,338.88
  4. Step 4: Simplify right side
    15,627.84x = 201,379,125.66
  5. Step 5: Solve for x
    x = 201,379,125.66/15,627.84
  6. Step 6: Final answer
    x = 12,885.92

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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.