Home / 13,357.12-18,432.38-7,307.33

Finding the Fourth Proportional to 13,357.12, 18,432.38 and 7,307.33

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Solution

The fourth proportional to 13,357.12, 18,432.38 and 7,307.33 is: 10,083.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,357.12 : 18,432.38 = 7,307.33 : x
  2. Step 2: Convert to fraction form
    13,357.12/18,432.38 = 7,307.33/x
  3. Step 3: Cross multiply
    13,357.12x = 18,432.38 × 7,307.33
  4. Step 4: Simplify right side
    13,357.12x = 134,691,492.89
  5. Step 5: Solve for x
    x = 134,691,492.89/13,357.12
  6. Step 6: Final answer
    x = 10,083.87

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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.