Home / 16,915.76-23,366.06-12,985.44

Finding the Fourth Proportional to 16,915.76, 23,366.06 and 12,985.44

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Solution

The fourth proportional to 16,915.76, 23,366.06 and 12,985.44 is: 17,937.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,915.76 : 23,366.06 = 12,985.44 : x
  2. Step 2: Convert to fraction form
    16,915.76/23,366.06 = 12,985.44/x
  3. Step 3: Cross multiply
    16,915.76x = 23,366.06 × 12,985.44
  4. Step 4: Simplify right side
    16,915.76x = 303,418,570.17
  5. Step 5: Solve for x
    x = 303,418,570.17/16,915.76
  6. Step 6: Final answer
    x = 17,937.03

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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.