Home / 19,149.93-28,730.61-9,289.53

Finding the Fourth Proportional to 19,149.93, 28,730.61 and 9,289.53

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Solution

The fourth proportional to 19,149.93, 28,730.61 and 9,289.53 is: 13,937.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,149.93 : 28,730.61 = 9,289.53 : x
  2. Step 2: Convert to fraction form
    19,149.93/28,730.61 = 9,289.53/x
  3. Step 3: Cross multiply
    19,149.93x = 28,730.61 × 9,289.53
  4. Step 4: Simplify right side
    19,149.93x = 266,893,863.51
  5. Step 5: Solve for x
    x = 266,893,863.51/19,149.93
  6. Step 6: Final answer
    x = 13,937.07

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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.