Home / 19,482.40-29,180.40-7,789.60

Finding the Fourth Proportional to 19,482.40, 29,180.40 and 7,789.60

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Solution

The fourth proportional to 19,482.40, 29,180.40 and 7,789.60 is: 11,667.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,482.40 : 29,180.40 = 7,789.60 : x
  2. Step 2: Convert to fraction form
    19,482.40/29,180.40 = 7,789.60/x
  3. Step 3: Cross multiply
    19,482.40x = 29,180.40 × 7,789.60
  4. Step 4: Simplify right side
    19,482.40x = 227,303,643.84
  5. Step 5: Solve for x
    x = 227,303,643.84/19,482.40
  6. Step 6: Final answer
    x = 11,667.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.