Home / 13,354.68-18,429.48-7,386.60

Finding the Fourth Proportional to 13,354.68, 18,429.48 and 7,386.60

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Solution

The fourth proportional to 13,354.68, 18,429.48 and 7,386.60 is: 10,193.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,354.68 : 18,429.48 = 7,386.60 : x
  2. Step 2: Convert to fraction form
    13,354.68/18,429.48 = 7,386.60/x
  3. Step 3: Cross multiply
    13,354.68x = 18,429.48 × 7,386.60
  4. Step 4: Simplify right side
    13,354.68x = 136,131,196.97
  5. Step 5: Solve for x
    x = 136,131,196.97/13,354.68
  6. Step 6: Final answer
    x = 10,193.52

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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.