Home / 13,239.23-18,270.18-7,271.01

Finding the Fourth Proportional to 13,239.23, 18,270.18 and 7,271.01

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Solution

The fourth proportional to 13,239.23, 18,270.18 and 7,271.01 is: 10,034.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,239.23 : 18,270.18 = 7,271.01 : x
  2. Step 2: Convert to fraction form
    13,239.23/18,270.18 = 7,271.01/x
  3. Step 3: Cross multiply
    13,239.23x = 18,270.18 × 7,271.01
  4. Step 4: Simplify right side
    13,239.23x = 132,842,661.48
  5. Step 5: Solve for x
    x = 132,842,661.48/13,239.23
  6. Step 6: Final answer
    x = 10,034.02

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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.