Home / 15,914.08-21,962.10-8,841.16

Finding the Fourth Proportional to 15,914.08, 21,962.10 and 8,841.16

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Solution

The fourth proportional to 15,914.08, 21,962.10 and 8,841.16 is: 12,201.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,914.08 : 21,962.10 = 8,841.16 : x
  2. Step 2: Convert to fraction form
    15,914.08/21,962.10 = 8,841.16/x
  3. Step 3: Cross multiply
    15,914.08x = 21,962.10 × 8,841.16
  4. Step 4: Simplify right side
    15,914.08x = 194,170,440.04
  5. Step 5: Solve for x
    x = 194,170,440.04/15,914.08
  6. Step 6: Final answer
    x = 12,201.17

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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.