Home / 13,240.04-18,271.56-7,271.83

Finding the Fourth Proportional to 13,240.04, 18,271.56 and 7,271.83

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Solution

The fourth proportional to 13,240.04, 18,271.56 and 7,271.83 is: 10,035.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,240.04 : 18,271.56 = 7,271.83 : x
  2. Step 2: Convert to fraction form
    13,240.04/18,271.56 = 7,271.83/x
  3. Step 3: Cross multiply
    13,240.04x = 18,271.56 × 7,271.83
  4. Step 4: Simplify right side
    13,240.04x = 132,867,728.26
  5. Step 5: Solve for x
    x = 132,867,728.26/13,240.04
  6. Step 6: Final answer
    x = 10,035.30

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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.