Home / 13,767.84-18,999.63-7,480.22

Finding the Fourth Proportional to 13,767.84, 18,999.63 and 7,480.22

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Solution

The fourth proportional to 13,767.84, 18,999.63 and 7,480.22 is: 10,322.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,767.84 : 18,999.63 = 7,480.22 : x
  2. Step 2: Convert to fraction form
    13,767.84/18,999.63 = 7,480.22/x
  3. Step 3: Cross multiply
    13,767.84x = 18,999.63 × 7,480.22
  4. Step 4: Simplify right side
    13,767.84x = 142,121,360.52
  5. Step 5: Solve for x
    x = 142,121,360.52/13,767.84
  6. Step 6: Final answer
    x = 10,322.70

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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.