Home / 13,240.49-18,271.14-7,271.19

Finding the Fourth Proportional to 13,240.49, 18,271.14 and 7,271.19

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Solution

The fourth proportional to 13,240.49, 18,271.14 and 7,271.19 is: 10,033.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,240.49 : 18,271.14 = 7,271.19 : x
  2. Step 2: Convert to fraction form
    13,240.49/18,271.14 = 7,271.19/x
  3. Step 3: Cross multiply
    13,240.49x = 18,271.14 × 7,271.19
  4. Step 4: Simplify right side
    13,240.49x = 132,852,930.46
  5. Step 5: Solve for x
    x = 132,852,930.46/13,240.49
  6. Step 6: Final answer
    x = 10,033.84

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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.