Home / 13,309.30-18,355.17-10,655.74

Finding the Fourth Proportional to 13,309.30, 18,355.17 and 10,655.74

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Solution

The fourth proportional to 13,309.30, 18,355.17 and 10,655.74 is: 14,695.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309.30 : 18,355.17 = 10,655.74 : x
  2. Step 2: Convert to fraction form
    13,309.30/18,355.17 = 10,655.74/x
  3. Step 3: Cross multiply
    13,309.30x = 18,355.17 × 10,655.74
  4. Step 4: Simplify right side
    13,309.30x = 195,587,919.18
  5. Step 5: Solve for x
    x = 195,587,919.18/13,309.30
  6. Step 6: Final answer
    x = 14,695.58

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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.