Home / 15,207.09-20,985.58-8,837.29

Finding the Fourth Proportional to 15,207.09, 20,985.58 and 8,837.29

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Solution

The fourth proportional to 15,207.09, 20,985.58 and 8,837.29 is: 12,195.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,207.09 : 20,985.58 = 8,837.29 : x
  2. Step 2: Convert to fraction form
    15,207.09/20,985.58 = 8,837.29/x
  3. Step 3: Cross multiply
    15,207.09x = 20,985.58 × 8,837.29
  4. Step 4: Simplify right side
    15,207.09x = 185,455,575.51
  5. Step 5: Solve for x
    x = 185,455,575.51/15,207.09
  6. Step 6: Final answer
    x = 12,195.33

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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.