Home / 11,317.40-15,617.28-6,281.63

Finding the Fourth Proportional to 11,317.40, 15,617.28 and 6,281.63

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Solution

The fourth proportional to 11,317.40, 15,617.28 and 6,281.63 is: 8,668.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,317.40 : 15,617.28 = 6,281.63 : x
  2. Step 2: Convert to fraction form
    11,317.40/15,617.28 = 6,281.63/x
  3. Step 3: Cross multiply
    11,317.40x = 15,617.28 × 6,281.63
  4. Step 4: Simplify right side
    11,317.40x = 98,101,896.48
  5. Step 5: Solve for x
    x = 98,101,896.48/11,317.40
  6. Step 6: Final answer
    x = 8,668.24

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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.