Home / 15,880.20-21,904.65-10,222.26

Finding the Fourth Proportional to 15,880.20, 21,904.65 and 10,222.26

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Solution

The fourth proportional to 15,880.20, 21,904.65 and 10,222.26 is: 14,100.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,880.20 : 21,904.65 = 10,222.26 : x
  2. Step 2: Convert to fraction form
    15,880.20/21,904.65 = 10,222.26/x
  3. Step 3: Cross multiply
    15,880.20x = 21,904.65 × 10,222.26
  4. Step 4: Simplify right side
    15,880.20x = 223,915,027.51
  5. Step 5: Solve for x
    x = 223,915,027.51/15,880.20
  6. Step 6: Final answer
    x = 14,100.26

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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.