Home / 13,650.21-18,837.23-7,681.98

Finding the Fourth Proportional to 13,650.21, 18,837.23 and 7,681.98

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Solution

The fourth proportional to 13,650.21, 18,837.23 and 7,681.98 is: 10,601.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,650.21 : 18,837.23 = 7,681.98 : x
  2. Step 2: Convert to fraction form
    13,650.21/18,837.23 = 7,681.98/x
  3. Step 3: Cross multiply
    13,650.21x = 18,837.23 × 7,681.98
  4. Step 4: Simplify right side
    13,650.21x = 144,707,290.41
  5. Step 5: Solve for x
    x = 144,707,290.41/13,650.21
  6. Step 6: Final answer
    x = 10,601.10

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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.