Home / 15,856.08-21,878.76-10,192.08

Finding the Fourth Proportional to 15,856.08, 21,878.76 and 10,192.08

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Solution

The fourth proportional to 15,856.08, 21,878.76 and 10,192.08 is: 14,063.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,856.08 : 21,878.76 = 10,192.08 : x
  2. Step 2: Convert to fraction form
    15,856.08/21,878.76 = 10,192.08/x
  3. Step 3: Cross multiply
    15,856.08x = 21,878.76 × 10,192.08
  4. Step 4: Simplify right side
    15,856.08x = 222,990,072.22
  5. Step 5: Solve for x
    x = 222,990,072.22/15,856.08
  6. Step 6: Final answer
    x = 14,063.38

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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.