Home / 15,638.03-21,580.65-8,924.55

Finding the Fourth Proportional to 15,638.03, 21,580.65 and 8,924.55

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Solution

The fourth proportional to 15,638.03, 21,580.65 and 8,924.55 is: 12,315.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,638.03 : 21,580.65 = 8,924.55 : x
  2. Step 2: Convert to fraction form
    15,638.03/21,580.65 = 8,924.55/x
  3. Step 3: Cross multiply
    15,638.03x = 21,580.65 × 8,924.55
  4. Step 4: Simplify right side
    15,638.03x = 192,597,589.96
  5. Step 5: Solve for x
    x = 192,597,589.96/15,638.03
  6. Step 6: Final answer
    x = 12,315.98

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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.