Home / 9,428.45-13,011.29-5,236.70

Finding the Fourth Proportional to 9,428.45, 13,011.29 and 5,236.70

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Solution

The fourth proportional to 9,428.45, 13,011.29 and 5,236.70 is: 7,226.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,428.45 : 13,011.29 = 5,236.70 : x
  2. Step 2: Convert to fraction form
    9,428.45/13,011.29 = 5,236.70/x
  3. Step 3: Cross multiply
    9,428.45x = 13,011.29 × 5,236.70
  4. Step 4: Simplify right side
    9,428.45x = 68,136,131.10
  5. Step 5: Solve for x
    x = 68,136,131.10/9,428.45
  6. Step 6: Final answer
    x = 7,226.66

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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.