Home / 9,405.24-12,980.14-5,214.52

Finding the Fourth Proportional to 9,405.24, 12,980.14 and 5,214.52

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Solution

The fourth proportional to 9,405.24, 12,980.14 and 5,214.52 is: 7,196.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,405.24 : 12,980.14 = 5,214.52 : x
  2. Step 2: Convert to fraction form
    9,405.24/12,980.14 = 5,214.52/x
  3. Step 3: Cross multiply
    9,405.24x = 12,980.14 × 5,214.52
  4. Step 4: Simplify right side
    9,405.24x = 67,685,199.63
  5. Step 5: Solve for x
    x = 67,685,199.63/9,405.24
  6. Step 6: Final answer
    x = 7,196.54

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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.