Home / 11,470.11-15,828.08-6,435.15

Finding the Fourth Proportional to 11,470.11, 15,828.08 and 6,435.15

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Solution

The fourth proportional to 11,470.11, 15,828.08 and 6,435.15 is: 8,880.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,470.11 : 15,828.08 = 6,435.15 : x
  2. Step 2: Convert to fraction form
    11,470.11/15,828.08 = 6,435.15/x
  3. Step 3: Cross multiply
    11,470.11x = 15,828.08 × 6,435.15
  4. Step 4: Simplify right side
    11,470.11x = 101,856,036.84
  5. Step 5: Solve for x
    x = 101,856,036.84/11,470.11
  6. Step 6: Final answer
    x = 8,880.13

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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.