Home / 13,586.36-18,748.50-7,997

Finding the Fourth Proportional to 13,586.36, 18,748.50 and 7,997

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Solution

The fourth proportional to 13,586.36, 18,748.50 and 7,997 is: 11,035.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,586.36 : 18,748.50 = 7,997 : x
  2. Step 2: Convert to fraction form
    13,586.36/18,748.50 = 7,997/x
  3. Step 3: Cross multiply
    13,586.36x = 18,748.50 × 7,997
  4. Step 4: Simplify right side
    13,586.36x = 149,931,754.50
  5. Step 5: Solve for x
    x = 149,931,754.50/13,586.36
  6. Step 6: Final answer
    x = 11,035.46

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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.