Home / 13,955.06-19,266.59-8,921.32

Finding the Fourth Proportional to 13,955.06, 19,266.59 and 8,921.32

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Solution

The fourth proportional to 13,955.06, 19,266.59 and 8,921.32 is: 12,316.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,955.06 : 19,266.59 = 8,921.32 : x
  2. Step 2: Convert to fraction form
    13,955.06/19,266.59 = 8,921.32/x
  3. Step 3: Cross multiply
    13,955.06x = 19,266.59 × 8,921.32
  4. Step 4: Simplify right side
    13,955.06x = 171,883,414.70
  5. Step 5: Solve for x
    x = 171,883,414.70/13,955.06
  6. Step 6: Final answer
    x = 12,316.92

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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.