Home / 13,445.15-18,554.60-7,476.59

Finding the Fourth Proportional to 13,445.15, 18,554.60 and 7,476.59

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Solution

The fourth proportional to 13,445.15, 18,554.60 and 7,476.59 is: 10,317.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,445.15 : 18,554.60 = 7,476.59 : x
  2. Step 2: Convert to fraction form
    13,445.15/18,554.60 = 7,476.59/x
  3. Step 3: Cross multiply
    13,445.15x = 18,554.60 × 7,476.59
  4. Step 4: Simplify right side
    13,445.15x = 138,725,201.89
  5. Step 5: Solve for x
    x = 138,725,201.89/13,445.15
  6. Step 6: Final answer
    x = 10,317.87

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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.