Home / 15,922.51-21,973.20-9,957.64

Finding the Fourth Proportional to 15,922.51, 21,973.20 and 9,957.64

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Solution

The fourth proportional to 15,922.51, 21,973.20 and 9,957.64 is: 13,741.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,922.51 : 21,973.20 = 9,957.64 : x
  2. Step 2: Convert to fraction form
    15,922.51/21,973.20 = 9,957.64/x
  3. Step 3: Cross multiply
    15,922.51x = 21,973.20 × 9,957.64
  4. Step 4: Simplify right side
    15,922.51x = 218,801,165.46
  5. Step 5: Solve for x
    x = 218,801,165.46/15,922.51
  6. Step 6: Final answer
    x = 13,741.63

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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.