Home / 9,612.39-13,266.35-5,636.91

Finding the Fourth Proportional to 9,612.39, 13,266.35 and 5,636.91

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Solution

The fourth proportional to 9,612.39, 13,266.35 and 5,636.91 is: 7,779.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,612.39 : 13,266.35 = 5,636.91 : x
  2. Step 2: Convert to fraction form
    9,612.39/13,266.35 = 5,636.91/x
  3. Step 3: Cross multiply
    9,612.39x = 13,266.35 × 5,636.91
  4. Step 4: Simplify right side
    9,612.39x = 74,781,220.98
  5. Step 5: Solve for x
    x = 74,781,220.98/9,612.39
  6. Step 6: Final answer
    x = 7,779.67

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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.