Home / 13,425.01-18,525.91-7,456.21

Finding the Fourth Proportional to 13,425.01, 18,525.91 and 7,456.21

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Solution

The fourth proportional to 13,425.01, 18,525.91 and 7,456.21 is: 10,289.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,425.01 : 18,525.91 = 7,456.21 : x
  2. Step 2: Convert to fraction form
    13,425.01/18,525.91 = 7,456.21/x
  3. Step 3: Cross multiply
    13,425.01x = 18,525.91 × 7,456.21
  4. Step 4: Simplify right side
    13,425.01x = 138,133,075.40
  5. Step 5: Solve for x
    x = 138,133,075.40/13,425.01
  6. Step 6: Final answer
    x = 10,289.23

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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.