Home / 18,783.84-28,151.28-10,463.52

Finding the Fourth Proportional to 18,783.84, 28,151.28 and 10,463.52

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Solution

The fourth proportional to 18,783.84, 28,151.28 and 10,463.52 is: 15,681.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,783.84 : 28,151.28 = 10,463.52 : x
  2. Step 2: Convert to fraction form
    18,783.84/28,151.28 = 10,463.52/x
  3. Step 3: Cross multiply
    18,783.84x = 28,151.28 × 10,463.52
  4. Step 4: Simplify right side
    18,783.84x = 294,561,481.31
  5. Step 5: Solve for x
    x = 294,561,481.31/18,783.84
  6. Step 6: Final answer
    x = 15,681.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.