Home / 11,580.90-17,371.35-4,187.70

Finding the Fourth Proportional to 11,580.90, 17,371.35 and 4,187.70

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Solution

The fourth proportional to 11,580.90, 17,371.35 and 4,187.70 is: 6,281.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,580.90 : 17,371.35 = 4,187.70 : x
  2. Step 2: Convert to fraction form
    11,580.90/17,371.35 = 4,187.70/x
  3. Step 3: Cross multiply
    11,580.90x = 17,371.35 × 4,187.70
  4. Step 4: Simplify right side
    11,580.90x = 72,746,002.40
  5. Step 5: Solve for x
    x = 72,746,002.40/11,580.90
  6. Step 6: Final answer
    x = 6,281.55

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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.