Home / 11,085.60-16,628.40-3,690.30

Finding the Fourth Proportional to 11,085.60, 16,628.40 and 3,690.30

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Solution

The fourth proportional to 11,085.60, 16,628.40 and 3,690.30 is: 5,535.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,085.60 : 16,628.40 = 3,690.30 : x
  2. Step 2: Convert to fraction form
    11,085.60/16,628.40 = 3,690.30/x
  3. Step 3: Cross multiply
    11,085.60x = 16,628.40 × 3,690.30
  4. Step 4: Simplify right side
    11,085.60x = 61,363,784.52
  5. Step 5: Solve for x
    x = 61,363,784.52/11,085.60
  6. Step 6: Final answer
    x = 5,535.45

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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.