Home / 19,160.08-28,740.60-5,309.04

Finding the Fourth Proportional to 19,160.08, 28,740.60 and 5,309.04

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Solution

The fourth proportional to 19,160.08, 28,740.60 and 5,309.04 is: 7,963.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,160.08 : 28,740.60 = 5,309.04 : x
  2. Step 2: Convert to fraction form
    19,160.08/28,740.60 = 5,309.04/x
  3. Step 3: Cross multiply
    19,160.08x = 28,740.60 × 5,309.04
  4. Step 4: Simplify right side
    19,160.08x = 152,584,995.02
  5. Step 5: Solve for x
    x = 152,584,995.02/19,160.08
  6. Step 6: Final answer
    x = 7,963.69

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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.