Home / 13,887.20-19,164.18-7,599.50

Finding the Fourth Proportional to 13,887.20, 19,164.18 and 7,599.50

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Solution

The fourth proportional to 13,887.20, 19,164.18 and 7,599.50 is: 10,487.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,887.20 : 19,164.18 = 7,599.50 : x
  2. Step 2: Convert to fraction form
    13,887.20/19,164.18 = 7,599.50/x
  3. Step 3: Cross multiply
    13,887.20x = 19,164.18 × 7,599.50
  4. Step 4: Simplify right side
    13,887.20x = 145,638,185.91
  5. Step 5: Solve for x
    x = 145,638,185.91/13,887.20
  6. Step 6: Final answer
    x = 10,487.22

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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.