Home / 13,148.40-18,144.89-7,483.58

Finding the Fourth Proportional to 13,148.40, 18,144.89 and 7,483.58

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Solution

The fourth proportional to 13,148.40, 18,144.89 and 7,483.58 is: 10,327.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,148.40 : 18,144.89 = 7,483.58 : x
  2. Step 2: Convert to fraction form
    13,148.40/18,144.89 = 7,483.58/x
  3. Step 3: Cross multiply
    13,148.40x = 18,144.89 × 7,483.58
  4. Step 4: Simplify right side
    13,148.40x = 135,788,799.98
  5. Step 5: Solve for x
    x = 135,788,799.98/13,148.40
  6. Step 6: Final answer
    x = 10,327.40

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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.