Home / 11,506.34-15,878.66-6,470.55

Finding the Fourth Proportional to 11,506.34, 15,878.66 and 6,470.55

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Solution

The fourth proportional to 11,506.34, 15,878.66 and 6,470.55 is: 8,929.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,506.34 : 15,878.66 = 6,470.55 : x
  2. Step 2: Convert to fraction form
    11,506.34/15,878.66 = 6,470.55/x
  3. Step 3: Cross multiply
    11,506.34x = 15,878.66 × 6,470.55
  4. Step 4: Simplify right side
    11,506.34x = 102,743,663.46
  5. Step 5: Solve for x
    x = 102,743,663.46/11,506.34
  6. Step 6: Final answer
    x = 8,929.31

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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.