Home / 13,947.12-19,244.16-8,281.08

Finding the Fourth Proportional to 13,947.12, 19,244.16 and 8,281.08

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Solution

The fourth proportional to 13,947.12, 19,244.16 and 8,281.08 is: 11,426.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,947.12 : 19,244.16 = 8,281.08 : x
  2. Step 2: Convert to fraction form
    13,947.12/19,244.16 = 8,281.08/x
  3. Step 3: Cross multiply
    13,947.12x = 19,244.16 × 8,281.08
  4. Step 4: Simplify right side
    13,947.12x = 159,362,428.49
  5. Step 5: Solve for x
    x = 159,362,428.49/13,947.12
  6. Step 6: Final answer
    x = 11,426.19

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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.