Home / 12,548.61-18,822.96-5,615.01

Finding the Fourth Proportional to 12,548.61, 18,822.96 and 5,615.01

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Solution

The fourth proportional to 12,548.61, 18,822.96 and 5,615.01 is: 8,422.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,548.61 : 18,822.96 = 5,615.01 : x
  2. Step 2: Convert to fraction form
    12,548.61/18,822.96 = 5,615.01/x
  3. Step 3: Cross multiply
    12,548.61x = 18,822.96 × 5,615.01
  4. Step 4: Simplify right side
    12,548.61x = 105,691,108.63
  5. Step 5: Solve for x
    x = 105,691,108.63/12,548.61
  6. Step 6: Final answer
    x = 8,422.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.