Home / 15,888.35-21,925.27-9,175.88

Finding the Fourth Proportional to 15,888.35, 21,925.27 and 9,175.88

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Solution

The fourth proportional to 15,888.35, 21,925.27 and 9,175.88 is: 12,662.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,888.35 : 21,925.27 = 9,175.88 : x
  2. Step 2: Convert to fraction form
    15,888.35/21,925.27 = 9,175.88/x
  3. Step 3: Cross multiply
    15,888.35x = 21,925.27 × 9,175.88
  4. Step 4: Simplify right side
    15,888.35x = 201,183,646.49
  5. Step 5: Solve for x
    x = 201,183,646.49/15,888.35
  6. Step 6: Final answer
    x = 12,662.34

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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.