Home / 11,506.05-15,878.27-6,470.28

Finding the Fourth Proportional to 11,506.05, 15,878.27 and 6,470.28

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Solution

The fourth proportional to 11,506.05, 15,878.27 and 6,470.28 is: 8,928.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,506.05 : 15,878.27 = 6,470.28 : x
  2. Step 2: Convert to fraction form
    11,506.05/15,878.27 = 6,470.28/x
  3. Step 3: Cross multiply
    11,506.05x = 15,878.27 × 6,470.28
  4. Step 4: Simplify right side
    11,506.05x = 102,736,780.77
  5. Step 5: Solve for x
    x = 102,736,780.77/11,506.05
  6. Step 6: Final answer
    x = 8,928.94

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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.