Home / 13,223.86-18,248.93-7,558.73

Finding the Fourth Proportional to 13,223.86, 18,248.93 and 7,558.73

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Solution

The fourth proportional to 13,223.86, 18,248.93 and 7,558.73 is: 10,431.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,223.86 : 18,248.93 = 7,558.73 : x
  2. Step 2: Convert to fraction form
    13,223.86/18,248.93 = 7,558.73/x
  3. Step 3: Cross multiply
    13,223.86x = 18,248.93 × 7,558.73
  4. Step 4: Simplify right side
    13,223.86x = 137,938,748.02
  5. Step 5: Solve for x
    x = 137,938,748.02/13,223.86
  6. Step 6: Final answer
    x = 10,431.05

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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.