Home / 13,240.06-18,270.57-7,574.92

Finding the Fourth Proportional to 13,240.06, 18,270.57 and 7,574.92

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Solution

The fourth proportional to 13,240.06, 18,270.57 and 7,574.92 is: 10,452.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,240.06 : 18,270.57 = 7,574.92 : x
  2. Step 2: Convert to fraction form
    13,240.06/18,270.57 = 7,574.92/x
  3. Step 3: Cross multiply
    13,240.06x = 18,270.57 × 7,574.92
  4. Step 4: Simplify right side
    13,240.06x = 138,398,106.10
  5. Step 5: Solve for x
    x = 138,398,106.10/13,240.06
  6. Step 6: Final answer
    x = 10,452.98

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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.