Home / 11,156.29-15,395.01-6,119.50

Finding the Fourth Proportional to 11,156.29, 15,395.01 and 6,119.50

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Solution

The fourth proportional to 11,156.29, 15,395.01 and 6,119.50 is: 8,444.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,156.29 : 15,395.01 = 6,119.50 : x
  2. Step 2: Convert to fraction form
    11,156.29/15,395.01 = 6,119.50/x
  3. Step 3: Cross multiply
    11,156.29x = 15,395.01 × 6,119.50
  4. Step 4: Simplify right side
    11,156.29x = 94,209,763.70
  5. Step 5: Solve for x
    x = 94,209,763.70/11,156.29
  6. Step 6: Final answer
    x = 8,444.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.