Home / 13,685.01-18,884.73-7,717.23

Finding the Fourth Proportional to 13,685.01, 18,884.73 and 7,717.23

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Solution

The fourth proportional to 13,685.01, 18,884.73 and 7,717.23 is: 10,649.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,685.01 : 18,884.73 = 7,717.23 : x
  2. Step 2: Convert to fraction form
    13,685.01/18,884.73 = 7,717.23/x
  3. Step 3: Cross multiply
    13,685.01x = 18,884.73 × 7,717.23
  4. Step 4: Simplify right side
    13,685.01x = 145,737,804.90
  5. Step 5: Solve for x
    x = 145,737,804.90/13,685.01
  6. Step 6: Final answer
    x = 10,649.45

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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.