Home / 9,479.10-13,081.14-5,172.24

Finding the Fourth Proportional to 9,479.10, 13,081.14 and 5,172.24

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Solution

The fourth proportional to 9,479.10, 13,081.14 and 5,172.24 is: 7,137.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,479.10 : 13,081.14 = 5,172.24 : x
  2. Step 2: Convert to fraction form
    9,479.10/13,081.14 = 5,172.24/x
  3. Step 3: Cross multiply
    9,479.10x = 13,081.14 × 5,172.24
  4. Step 4: Simplify right side
    9,479.10x = 67,658,795.55
  5. Step 5: Solve for x
    x = 67,658,795.55/9,479.10
  6. Step 6: Final answer
    x = 7,137.68

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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.