Home / 18,807.48-28,215.90-5,659.56

Finding the Fourth Proportional to 18,807.48, 28,215.90 and 5,659.56

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Solution

The fourth proportional to 18,807.48, 28,215.90 and 5,659.56 is: 8,490.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,807.48 : 28,215.90 = 5,659.56 : x
  2. Step 2: Convert to fraction form
    18,807.48/28,215.90 = 5,659.56/x
  3. Step 3: Cross multiply
    18,807.48x = 28,215.90 × 5,659.56
  4. Step 4: Simplify right side
    18,807.48x = 159,689,579.00
  5. Step 5: Solve for x
    x = 159,689,579.00/18,807.48
  6. Step 6: Final answer
    x = 8,490.75

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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.