Home / 13,830.14-19,088.08-8,164.56

Finding the Fourth Proportional to 13,830.14, 19,088.08 and 8,164.56

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Solution

The fourth proportional to 13,830.14, 19,088.08 and 8,164.56 is: 11,268.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,830.14 : 19,088.08 = 8,164.56 : x
  2. Step 2: Convert to fraction form
    13,830.14/19,088.08 = 8,164.56/x
  3. Step 3: Cross multiply
    13,830.14x = 19,088.08 × 8,164.56
  4. Step 4: Simplify right side
    13,830.14x = 155,845,764.17
  5. Step 5: Solve for x
    x = 155,845,764.17/13,830.14
  6. Step 6: Final answer
    x = 11,268.56

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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.