Home / 10,638.16-14,681.28-5,922.56

Finding the Fourth Proportional to 10,638.16, 14,681.28 and 5,922.56

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Solution

The fourth proportional to 10,638.16, 14,681.28 and 5,922.56 is: 8,173.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,638.16 : 14,681.28 = 5,922.56 : x
  2. Step 2: Convert to fraction form
    10,638.16/14,681.28 = 5,922.56/x
  3. Step 3: Cross multiply
    10,638.16x = 14,681.28 × 5,922.56
  4. Step 4: Simplify right side
    10,638.16x = 86,950,761.68
  5. Step 5: Solve for x
    x = 86,950,761.68/10,638.16
  6. Step 6: Final answer
    x = 8,173.48

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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.