Home / 11,317.08-15,617.70-6,281.40

Finding the Fourth Proportional to 11,317.08, 15,617.70 and 6,281.40

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Solution

The fourth proportional to 11,317.08, 15,617.70 and 6,281.40 is: 8,668.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,317.08 : 15,617.70 = 6,281.40 : x
  2. Step 2: Convert to fraction form
    11,317.08/15,617.70 = 6,281.40/x
  3. Step 3: Cross multiply
    11,317.08x = 15,617.70 × 6,281.40
  4. Step 4: Simplify right side
    11,317.08x = 98,101,020.78
  5. Step 5: Solve for x
    x = 98,101,020.78/11,317.08
  6. Step 6: Final answer
    x = 8,668.40

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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.