Home / 15,348.08-21,192.27-11,985.06

Finding the Fourth Proportional to 15,348.08, 21,192.27 and 11,985.06

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Solution

The fourth proportional to 15,348.08, 21,192.27 and 11,985.06 is: 16,548.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,348.08 : 21,192.27 = 11,985.06 : x
  2. Step 2: Convert to fraction form
    15,348.08/21,192.27 = 11,985.06/x
  3. Step 3: Cross multiply
    15,348.08x = 21,192.27 × 11,985.06
  4. Step 4: Simplify right side
    15,348.08x = 253,990,627.49
  5. Step 5: Solve for x
    x = 253,990,627.49/15,348.08
  6. Step 6: Final answer
    x = 16,548.69

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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.