Home / 13,530.44-18,681.23-8,822.93

Finding the Fourth Proportional to 13,530.44, 18,681.23 and 8,822.93

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Solution

The fourth proportional to 13,530.44, 18,681.23 and 8,822.93 is: 12,181.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,530.44 : 18,681.23 = 8,822.93 : x
  2. Step 2: Convert to fraction form
    13,530.44/18,681.23 = 8,822.93/x
  3. Step 3: Cross multiply
    13,530.44x = 18,681.23 × 8,822.93
  4. Step 4: Simplify right side
    13,530.44x = 164,823,113.26
  5. Step 5: Solve for x
    x = 164,823,113.26/13,530.44
  6. Step 6: Final answer
    x = 12,181.65

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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.