Home / 18,535.59-27,807.95-5,387.78

Finding the Fourth Proportional to 18,535.59, 27,807.95 and 5,387.78

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Solution

The fourth proportional to 18,535.59, 27,807.95 and 5,387.78 is: 8,083.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,535.59 : 27,807.95 = 5,387.78 : x
  2. Step 2: Convert to fraction form
    18,535.59/27,807.95 = 5,387.78/x
  3. Step 3: Cross multiply
    18,535.59x = 27,807.95 × 5,387.78
  4. Step 4: Simplify right side
    18,535.59x = 149,823,199.84
  5. Step 5: Solve for x
    x = 149,823,199.84/18,535.59
  6. Step 6: Final answer
    x = 8,083.00

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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.