Home / 13,245.60-18,297.59-12,545.76

Finding the Fourth Proportional to 13,245.60, 18,297.59 and 12,545.76

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Solution

The fourth proportional to 13,245.60, 18,297.59 and 12,545.76 is: 17,330.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,245.60 : 18,297.59 = 12,545.76 : x
  2. Step 2: Convert to fraction form
    13,245.60/18,297.59 = 12,545.76/x
  3. Step 3: Cross multiply
    13,245.60x = 18,297.59 × 12,545.76
  4. Step 4: Simplify right side
    13,245.60x = 229,557,109.99
  5. Step 5: Solve for x
    x = 229,557,109.99/13,245.60
  6. Step 6: Final answer
    x = 17,330.82

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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.