Home / 15,302.52-21,114.27-10,005.12

Finding the Fourth Proportional to 15,302.52, 21,114.27 and 10,005.12

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Solution

The fourth proportional to 15,302.52, 21,114.27 and 10,005.12 is: 13,804.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,302.52 : 21,114.27 = 10,005.12 : x
  2. Step 2: Convert to fraction form
    15,302.52/21,114.27 = 10,005.12/x
  3. Step 3: Cross multiply
    15,302.52x = 21,114.27 × 10,005.12
  4. Step 4: Simplify right side
    15,302.52x = 211,250,805.06
  5. Step 5: Solve for x
    x = 211,250,805.06/15,302.52
  6. Step 6: Final answer
    x = 13,804.97

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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.