Home / 15,876.93-21,900.24-10,219.05

Finding the Fourth Proportional to 15,876.93, 21,900.24 and 10,219.05

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Solution

The fourth proportional to 15,876.93, 21,900.24 and 10,219.05 is: 14,095.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,876.93 : 21,900.24 = 10,219.05 : x
  2. Step 2: Convert to fraction form
    15,876.93/21,900.24 = 10,219.05/x
  3. Step 3: Cross multiply
    15,876.93x = 21,900.24 × 10,219.05
  4. Step 4: Simplify right side
    15,876.93x = 223,799,647.57
  5. Step 5: Solve for x
    x = 223,799,647.57/15,876.93
  6. Step 6: Final answer
    x = 14,095.90

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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.