Home / 15,869.46-21,879.63-10,193.91

Finding the Fourth Proportional to 15,869.46, 21,879.63 and 10,193.91

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Solution

The fourth proportional to 15,869.46, 21,879.63 and 10,193.91 is: 14,054.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,869.46 : 21,879.63 = 10,193.91 : x
  2. Step 2: Convert to fraction form
    15,869.46/21,879.63 = 10,193.91/x
  3. Step 3: Cross multiply
    15,869.46x = 21,879.63 × 10,193.91
  4. Step 4: Simplify right side
    15,869.46x = 223,038,979.05
  5. Step 5: Solve for x
    x = 223,038,979.05/15,869.46
  6. Step 6: Final answer
    x = 14,054.60

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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.