Home / 9,123.78-13,685.86-4,192.08

Finding the Fourth Proportional to 9,123.78, 13,685.86 and 4,192.08

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Solution

The fourth proportional to 9,123.78, 13,685.86 and 4,192.08 is: 6,288.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,123.78 : 13,685.86 = 4,192.08 : x
  2. Step 2: Convert to fraction form
    9,123.78/13,685.86 = 4,192.08/x
  3. Step 3: Cross multiply
    9,123.78x = 13,685.86 × 4,192.08
  4. Step 4: Simplify right side
    9,123.78x = 57,372,219.99
  5. Step 5: Solve for x
    x = 57,372,219.99/9,123.78
  6. Step 6: Final answer
    x = 6,288.21

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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.