Home / 13,395.42-18,486.36-7,427.70

Finding the Fourth Proportional to 13,395.42, 18,486.36 and 7,427.70

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Solution

The fourth proportional to 13,395.42, 18,486.36 and 7,427.70 is: 10,250.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,395.42 : 18,486.36 = 7,427.70 : x
  2. Step 2: Convert to fraction form
    13,395.42/18,486.36 = 7,427.70/x
  3. Step 3: Cross multiply
    13,395.42x = 18,486.36 × 7,427.70
  4. Step 4: Simplify right side
    13,395.42x = 137,311,136.17
  5. Step 5: Solve for x
    x = 137,311,136.17/13,395.42
  6. Step 6: Final answer
    x = 10,250.60

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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.