Home / 15,395.67-21,257.40-9,435.48

Finding the Fourth Proportional to 15,395.67, 21,257.40 and 9,435.48

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Solution

The fourth proportional to 15,395.67, 21,257.40 and 9,435.48 is: 13,027.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,395.67 : 21,257.40 = 9,435.48 : x
  2. Step 2: Convert to fraction form
    15,395.67/21,257.40 = 9,435.48/x
  3. Step 3: Cross multiply
    15,395.67x = 21,257.40 × 9,435.48
  4. Step 4: Simplify right side
    15,395.67x = 200,573,772.55
  5. Step 5: Solve for x
    x = 200,573,772.55/15,395.67
  6. Step 6: Final answer
    x = 13,027.93

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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.