Home / 15,820.08-21,819.60-10,150.08

Finding the Fourth Proportional to 15,820.08, 21,819.60 and 10,150.08

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Solution

The fourth proportional to 15,820.08, 21,819.60 and 10,150.08 is: 13,999.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,820.08 : 21,819.60 = 10,150.08 : x
  2. Step 2: Convert to fraction form
    15,820.08/21,819.60 = 10,150.08/x
  3. Step 3: Cross multiply
    15,820.08x = 21,819.60 × 10,150.08
  4. Step 4: Simplify right side
    15,820.08x = 221,470,685.57
  5. Step 5: Solve for x
    x = 221,470,685.57/15,820.08
  6. Step 6: Final answer
    x = 13,999.34

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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.