Home / 13,558.08-18,709.24-7,507.89

Finding the Fourth Proportional to 13,558.08, 18,709.24 and 7,507.89

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Solution

The fourth proportional to 13,558.08, 18,709.24 and 7,507.89 is: 10,360.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558.08 : 18,709.24 = 7,507.89 : x
  2. Step 2: Convert to fraction form
    13,558.08/18,709.24 = 7,507.89/x
  3. Step 3: Cross multiply
    13,558.08x = 18,709.24 × 7,507.89
  4. Step 4: Simplify right side
    13,558.08x = 140,466,915.90
  5. Step 5: Solve for x
    x = 140,466,915.90/13,558.08
  6. Step 6: Final answer
    x = 10,360.38

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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.