Home / 7,384.40-11,083.08-4,101.20

Finding the Fourth Proportional to 7,384.40, 11,083.08 and 4,101.20

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Solution

The fourth proportional to 7,384.40, 11,083.08 and 4,101.20 is: 6,155.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,384.40 : 11,083.08 = 4,101.20 : x
  2. Step 2: Convert to fraction form
    7,384.40/11,083.08 = 4,101.20/x
  3. Step 3: Cross multiply
    7,384.40x = 11,083.08 × 4,101.20
  4. Step 4: Simplify right side
    7,384.40x = 45,453,927.70
  5. Step 5: Solve for x
    x = 45,453,927.70/7,384.40
  6. Step 6: Final answer
    x = 6,155.40

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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.