Home / 13,324.77-18,387.52-7,655.50

Finding the Fourth Proportional to 13,324.77, 18,387.52 and 7,655.50

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Solution

The fourth proportional to 13,324.77, 18,387.52 and 7,655.50 is: 10,564.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,324.77 : 18,387.52 = 7,655.50 : x
  2. Step 2: Convert to fraction form
    13,324.77/18,387.52 = 7,655.50/x
  3. Step 3: Cross multiply
    13,324.77x = 18,387.52 × 7,655.50
  4. Step 4: Simplify right side
    13,324.77x = 140,765,659.36
  5. Step 5: Solve for x
    x = 140,765,659.36/13,324.77
  6. Step 6: Final answer
    x = 10,564.21

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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.