Home / 18,337.38-27,509.59-7,807.20

Finding the Fourth Proportional to 18,337.38, 27,509.59 and 7,807.20

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Solution

The fourth proportional to 18,337.38, 27,509.59 and 7,807.20 is: 11,712.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,337.38 : 27,509.59 = 7,807.20 : x
  2. Step 2: Convert to fraction form
    18,337.38/27,509.59 = 7,807.20/x
  3. Step 3: Cross multiply
    18,337.38x = 27,509.59 × 7,807.20
  4. Step 4: Simplify right side
    18,337.38x = 214,772,777.65
  5. Step 5: Solve for x
    x = 214,772,777.65/18,337.38
  6. Step 6: Final answer
    x = 11,712.30

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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.