Home / 15,412.19-21,268.82-8,699.23

Finding the Fourth Proportional to 15,412.19, 21,268.82 and 8,699.23

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Solution

The fourth proportional to 15,412.19, 21,268.82 and 8,699.23 is: 12,004.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,412.19 : 21,268.82 = 8,699.23 : x
  2. Step 2: Convert to fraction form
    15,412.19/21,268.82 = 8,699.23/x
  3. Step 3: Cross multiply
    15,412.19x = 21,268.82 × 8,699.23
  4. Step 4: Simplify right side
    15,412.19x = 185,022,207.17
  5. Step 5: Solve for x
    x = 185,022,207.17/15,412.19
  6. Step 6: Final answer
    x = 12,004.93

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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.