Home / 13,740.34-18,961.59-7,452.58

Finding the Fourth Proportional to 13,740.34, 18,961.59 and 7,452.58

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Solution

The fourth proportional to 13,740.34, 18,961.59 and 7,452.58 is: 10,284.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,740.34 : 18,961.59 = 7,452.58 : x
  2. Step 2: Convert to fraction form
    13,740.34/18,961.59 = 7,452.58/x
  3. Step 3: Cross multiply
    13,740.34x = 18,961.59 × 7,452.58
  4. Step 4: Simplify right side
    13,740.34x = 141,312,766.40
  5. Step 5: Solve for x
    x = 141,312,766.40/13,740.34
  6. Step 6: Final answer
    x = 10,284.52

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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.