Home / 18,190.90-27,287.50-5,711.40

Finding the Fourth Proportional to 18,190.90, 27,287.50 and 5,711.40

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Solution

The fourth proportional to 18,190.90, 27,287.50 and 5,711.40 is: 8,567.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,190.90 : 27,287.50 = 5,711.40 : x
  2. Step 2: Convert to fraction form
    18,190.90/27,287.50 = 5,711.40/x
  3. Step 3: Cross multiply
    18,190.90x = 27,287.50 × 5,711.40
  4. Step 4: Simplify right side
    18,190.90x = 155,849,827.50
  5. Step 5: Solve for x
    x = 155,849,827.50/18,190.90
  6. Step 6: Final answer
    x = 8,567.46

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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.