Home / 15,365.09-21,209.77-12,008.98

Finding the Fourth Proportional to 15,365.09, 21,209.77 and 12,008.98

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Solution

The fourth proportional to 15,365.09, 21,209.77 and 12,008.98 is: 16,577.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,365.09 : 21,209.77 = 12,008.98 : x
  2. Step 2: Convert to fraction form
    15,365.09/21,209.77 = 12,008.98/x
  3. Step 3: Cross multiply
    15,365.09x = 21,209.77 × 12,008.98
  4. Step 4: Simplify right side
    15,365.09x = 254,707,703.73
  5. Step 5: Solve for x
    x = 254,707,703.73/15,365.09
  6. Step 6: Final answer
    x = 16,577.04

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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.