Home / 19,783.79-29,675.60-8,097.02

Finding the Fourth Proportional to 19,783.79, 29,675.60 and 8,097.02

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Solution

The fourth proportional to 19,783.79, 29,675.60 and 8,097.02 is: 12,145.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,783.79 : 29,675.60 = 8,097.02 : x
  2. Step 2: Convert to fraction form
    19,783.79/29,675.60 = 8,097.02/x
  3. Step 3: Cross multiply
    19,783.79x = 29,675.60 × 8,097.02
  4. Step 4: Simplify right side
    19,783.79x = 240,283,926.71
  5. Step 5: Solve for x
    x = 240,283,926.71/19,783.79
  6. Step 6: Final answer
    x = 12,145.50

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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.