Home / 13,664.42-18,862.19-10,681.22

Finding the Fourth Proportional to 13,664.42, 18,862.19 and 10,681.22

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Solution

The fourth proportional to 13,664.42, 18,862.19 and 10,681.22 is: 14,744.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,664.42 : 18,862.19 = 10,681.22 : x
  2. Step 2: Convert to fraction form
    13,664.42/18,862.19 = 10,681.22/x
  3. Step 3: Cross multiply
    13,664.42x = 18,862.19 × 10,681.22
  4. Step 4: Simplify right side
    13,664.42x = 201,471,158.82
  5. Step 5: Solve for x
    x = 201,471,158.82/13,664.42
  6. Step 6: Final answer
    x = 14,744.21

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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.