Home / 9,387.15-14,078.61-2,812.50

Finding the Fourth Proportional to 9,387.15, 14,078.61 and 2,812.50

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Solution

The fourth proportional to 9,387.15, 14,078.61 and 2,812.50 is: 4,218.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,387.15 : 14,078.61 = 2,812.50 : x
  2. Step 2: Convert to fraction form
    9,387.15/14,078.61 = 2,812.50/x
  3. Step 3: Cross multiply
    9,387.15x = 14,078.61 × 2,812.50
  4. Step 4: Simplify right side
    9,387.15x = 39,596,090.63
  5. Step 5: Solve for x
    x = 39,596,090.63/9,387.15
  6. Step 6: Final answer
    x = 4,218.12

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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.