Home / 9,364.22-12,922.63-5,172.47

Finding the Fourth Proportional to 9,364.22, 12,922.63 and 5,172.47

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Solution

The fourth proportional to 9,364.22, 12,922.63 and 5,172.47 is: 7,138.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,364.22 : 12,922.63 = 5,172.47 : x
  2. Step 2: Convert to fraction form
    9,364.22/12,922.63 = 5,172.47/x
  3. Step 3: Cross multiply
    9,364.22x = 12,922.63 × 5,172.47
  4. Step 4: Simplify right side
    9,364.22x = 66,841,886.91
  5. Step 5: Solve for x
    x = 66,841,886.91/9,364.22
  6. Step 6: Final answer
    x = 7,138.01

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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.