Home / 13,947.56-19,248.08-7,660.08

Finding the Fourth Proportional to 13,947.56, 19,248.08 and 7,660.08

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Solution

The fourth proportional to 13,947.56, 19,248.08 and 7,660.08 is: 10,571.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,947.56 : 19,248.08 = 7,660.08 : x
  2. Step 2: Convert to fraction form
    13,947.56/19,248.08 = 7,660.08/x
  3. Step 3: Cross multiply
    13,947.56x = 19,248.08 × 7,660.08
  4. Step 4: Simplify right side
    13,947.56x = 147,441,832.65
  5. Step 5: Solve for x
    x = 147,441,832.65/13,947.56
  6. Step 6: Final answer
    x = 10,571.16

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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.