Home / 13,458.96-18,572.82-7,490.46

Finding the Fourth Proportional to 13,458.96, 18,572.82 and 7,490.46

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Solution

The fourth proportional to 13,458.96, 18,572.82 and 7,490.46 is: 10,336.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,458.96 : 18,572.82 = 7,490.46 : x
  2. Step 2: Convert to fraction form
    13,458.96/18,572.82 = 7,490.46/x
  3. Step 3: Cross multiply
    13,458.96x = 18,572.82 × 7,490.46
  4. Step 4: Simplify right side
    13,458.96x = 139,118,965.30
  5. Step 5: Solve for x
    x = 139,118,965.30/13,458.96
  6. Step 6: Final answer
    x = 10,336.53

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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.