Home / 15,838.93-21,860.04-9,123.25

Finding the Fourth Proportional to 15,838.93, 21,860.04 and 9,123.25

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Solution

The fourth proportional to 15,838.93, 21,860.04 and 9,123.25 is: 12,591.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,838.93 : 21,860.04 = 9,123.25 : x
  2. Step 2: Convert to fraction form
    15,838.93/21,860.04 = 9,123.25/x
  3. Step 3: Cross multiply
    15,838.93x = 21,860.04 × 9,123.25
  4. Step 4: Simplify right side
    15,838.93x = 199,434,609.93
  5. Step 5: Solve for x
    x = 199,434,609.93/15,838.93
  6. Step 6: Final answer
    x = 12,591.42

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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.