Home / 8,470.88-11,690.21-5,113.62

Finding the Fourth Proportional to 8,470.88, 11,690.21 and 5,113.62

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Solution

The fourth proportional to 8,470.88, 11,690.21 and 5,113.62 is: 7,057.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,470.88 : 11,690.21 = 5,113.62 : x
  2. Step 2: Convert to fraction form
    8,470.88/11,690.21 = 5,113.62/x
  3. Step 3: Cross multiply
    8,470.88x = 11,690.21 × 5,113.62
  4. Step 4: Simplify right side
    8,470.88x = 59,779,266.09
  5. Step 5: Solve for x
    x = 59,779,266.09/8,470.88
  6. Step 6: Final answer
    x = 7,057.04

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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.