Home / 13,683.53-18,883.13-7,717.13

Finding the Fourth Proportional to 13,683.53, 18,883.13 and 7,717.13

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Solution

The fourth proportional to 13,683.53, 18,883.13 and 7,717.13 is: 10,649.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,683.53 : 18,883.13 = 7,717.13 : x
  2. Step 2: Convert to fraction form
    13,683.53/18,883.13 = 7,717.13/x
  3. Step 3: Cross multiply
    13,683.53x = 18,883.13 × 7,717.13
  4. Step 4: Simplify right side
    13,683.53x = 145,723,569.02
  5. Step 5: Solve for x
    x = 145,723,569.02/13,683.53
  6. Step 6: Final answer
    x = 10,649.56

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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.