Home / 9,389.24-12,957.35-5,140.48

Finding the Fourth Proportional to 9,389.24, 12,957.35 and 5,140.48

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Solution

The fourth proportional to 9,389.24, 12,957.35 and 5,140.48 is: 7,093.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,389.24 : 12,957.35 = 5,140.48 : x
  2. Step 2: Convert to fraction form
    9,389.24/12,957.35 = 5,140.48/x
  3. Step 3: Cross multiply
    9,389.24x = 12,957.35 × 5,140.48
  4. Step 4: Simplify right side
    9,389.24x = 66,606,928.14
  5. Step 5: Solve for x
    x = 66,606,928.14/9,389.24
  6. Step 6: Final answer
    x = 7,093.97

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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.