Home / 15,988.53-22,064.30-8,915.43

Finding the Fourth Proportional to 15,988.53, 22,064.30 and 8,915.43

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Solution

The fourth proportional to 15,988.53, 22,064.30 and 8,915.43 is: 12,303.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,988.53 : 22,064.30 = 8,915.43 : x
  2. Step 2: Convert to fraction form
    15,988.53/22,064.30 = 8,915.43/x
  3. Step 3: Cross multiply
    15,988.53x = 22,064.30 × 8,915.43
  4. Step 4: Simplify right side
    15,988.53x = 196,712,722.15
  5. Step 5: Solve for x
    x = 196,712,722.15/15,988.53
  6. Step 6: Final answer
    x = 12,303.37

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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.