Home / 13,417.80-18,525.11-9,175.93

Finding the Fourth Proportional to 13,417.80, 18,525.11 and 9,175.93

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Solution

The fourth proportional to 13,417.80, 18,525.11 and 9,175.93 is: 12,668.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,417.80 : 18,525.11 = 9,175.93 : x
  2. Step 2: Convert to fraction form
    13,417.80/18,525.11 = 9,175.93/x
  3. Step 3: Cross multiply
    13,417.80x = 18,525.11 × 9,175.93
  4. Step 4: Simplify right side
    13,417.80x = 169,985,124.61
  5. Step 5: Solve for x
    x = 169,985,124.61/13,417.80
  6. Step 6: Final answer
    x = 12,668.63

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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.