Home / 13,655.04-18,826.47-9,175.29

Finding the Fourth Proportional to 13,655.04, 18,826.47 and 9,175.29

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Solution

The fourth proportional to 13,655.04, 18,826.47 and 9,175.29 is: 12,650.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,655.04 : 18,826.47 = 9,175.29 : x
  2. Step 2: Convert to fraction form
    13,655.04/18,826.47 = 9,175.29/x
  3. Step 3: Cross multiply
    13,655.04x = 18,826.47 × 9,175.29
  4. Step 4: Simplify right side
    13,655.04x = 172,738,321.93
  5. Step 5: Solve for x
    x = 172,738,321.93/13,655.04
  6. Step 6: Final answer
    x = 12,650.15

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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.