Home / 15,827.09-21,840.23-8,753.63

Finding the Fourth Proportional to 15,827.09, 21,840.23 and 8,753.63

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Solution

The fourth proportional to 15,827.09, 21,840.23 and 8,753.63 is: 12,079.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,827.09 : 21,840.23 = 8,753.63 : x
  2. Step 2: Convert to fraction form
    15,827.09/21,840.23 = 8,753.63/x
  3. Step 3: Cross multiply
    15,827.09x = 21,840.23 × 8,753.63
  4. Step 4: Simplify right side
    15,827.09x = 191,181,205.22
  5. Step 5: Solve for x
    x = 191,181,205.22/15,827.09
  6. Step 6: Final answer
    x = 12,079.37

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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.