Home / 19,004.79-28,507.20-5,153.79

Finding the Fourth Proportional to 19,004.79, 28,507.20 and 5,153.79

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Solution

The fourth proportional to 19,004.79, 28,507.20 and 5,153.79 is: 7,730.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,004.79 : 28,507.20 = 5,153.79 : x
  2. Step 2: Convert to fraction form
    19,004.79/28,507.20 = 5,153.79/x
  3. Step 3: Cross multiply
    19,004.79x = 28,507.20 × 5,153.79
  4. Step 4: Simplify right side
    19,004.79x = 146,920,122.29
  5. Step 5: Solve for x
    x = 146,920,122.29/19,004.79
  6. Step 6: Final answer
    x = 7,730.69

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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.