Home / 11,326.26-15,630.03-6,290.40

Finding the Fourth Proportional to 11,326.26, 15,630.03 and 6,290.40

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Solution

The fourth proportional to 11,326.26, 15,630.03 and 6,290.40 is: 8,680.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,326.26 : 15,630.03 = 6,290.40 : x
  2. Step 2: Convert to fraction form
    11,326.26/15,630.03 = 6,290.40/x
  3. Step 3: Cross multiply
    11,326.26x = 15,630.03 × 6,290.40
  4. Step 4: Simplify right side
    11,326.26x = 98,319,140.71
  5. Step 5: Solve for x
    x = 98,319,140.71/11,326.26
  6. Step 6: Final answer
    x = 8,680.64

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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.