Home / 15,988.15-22,063.68-8,915.03

Finding the Fourth Proportional to 15,988.15, 22,063.68 and 8,915.03

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Solution

The fourth proportional to 15,988.15, 22,063.68 and 8,915.03 is: 12,302.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,988.15 : 22,063.68 = 8,915.03 : x
  2. Step 2: Convert to fraction form
    15,988.15/22,063.68 = 8,915.03/x
  3. Step 3: Cross multiply
    15,988.15x = 22,063.68 × 8,915.03
  4. Step 4: Simplify right side
    15,988.15x = 196,698,369.11
  5. Step 5: Solve for x
    x = 196,698,369.11/15,988.15
  6. Step 6: Final answer
    x = 12,302.76

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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.