Home / 11,470.47-15,822.57-7,214.79

Finding the Fourth Proportional to 11,470.47, 15,822.57 and 7,214.79

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Solution

The fourth proportional to 11,470.47, 15,822.57 and 7,214.79 is: 9,952.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,470.47 : 15,822.57 = 7,214.79 : x
  2. Step 2: Convert to fraction form
    11,470.47/15,822.57 = 7,214.79/x
  3. Step 3: Cross multiply
    11,470.47x = 15,822.57 × 7,214.79
  4. Step 4: Simplify right side
    11,470.47x = 114,156,519.81
  5. Step 5: Solve for x
    x = 114,156,519.81/11,470.47
  6. Step 6: Final answer
    x = 9,952.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.