Home / 15,904.34-21,946.88-8,830.20

Finding the Fourth Proportional to 15,904.34, 21,946.88 and 8,830.20

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Solution

The fourth proportional to 15,904.34, 21,946.88 and 8,830.20 is: 12,185.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,904.34 : 21,946.88 = 8,830.20 : x
  2. Step 2: Convert to fraction form
    15,904.34/21,946.88 = 8,830.20/x
  3. Step 3: Cross multiply
    15,904.34x = 21,946.88 × 8,830.20
  4. Step 4: Simplify right side
    15,904.34x = 193,795,339.78
  5. Step 5: Solve for x
    x = 193,795,339.78/15,904.34
  6. Step 6: Final answer
    x = 12,185.06

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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.