Home / 15,841.32-21,860.67-8,671.23

Finding the Fourth Proportional to 15,841.32, 21,860.67 and 8,671.23

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Solution

The fourth proportional to 15,841.32, 21,860.67 and 8,671.23 is: 11,966.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,841.32 : 21,860.67 = 8,671.23 : x
  2. Step 2: Convert to fraction form
    15,841.32/21,860.67 = 8,671.23/x
  3. Step 3: Cross multiply
    15,841.32x = 21,860.67 × 8,671.23
  4. Step 4: Simplify right side
    15,841.32x = 189,558,897.52
  5. Step 5: Solve for x
    x = 189,558,897.52/15,841.32
  6. Step 6: Final answer
    x = 11,966.10

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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.