Home / 18,288.96-27,430.64-5,807.36

Finding the Fourth Proportional to 18,288.96, 27,430.64 and 5,807.36

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Solution

The fourth proportional to 18,288.96, 27,430.64 and 5,807.36 is: 8,710.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,288.96 : 27,430.64 = 5,807.36 : x
  2. Step 2: Convert to fraction form
    18,288.96/27,430.64 = 5,807.36/x
  3. Step 3: Cross multiply
    18,288.96x = 27,430.64 × 5,807.36
  4. Step 4: Simplify right side
    18,288.96x = 159,299,601.51
  5. Step 5: Solve for x
    x = 159,299,601.51/18,288.96
  6. Step 6: Final answer
    x = 8,710.15

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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.