Home / 8,470.41-11,689.29-4,885.31

Finding the Fourth Proportional to 8,470.41, 11,689.29 and 4,885.31

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Solution

The fourth proportional to 8,470.41, 11,689.29 and 4,885.31 is: 6,741.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,470.41 : 11,689.29 = 4,885.31 : x
  2. Step 2: Convert to fraction form
    8,470.41/11,689.29 = 4,885.31/x
  3. Step 3: Cross multiply
    8,470.41x = 11,689.29 × 4,885.31
  4. Step 4: Simplify right side
    8,470.41x = 57,105,746.88
  5. Step 5: Solve for x
    x = 57,105,746.88/8,470.41
  6. Step 6: Final answer
    x = 6,741.79

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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.