Home / 13,242.65-18,276.36-7,274.87

Finding the Fourth Proportional to 13,242.65, 18,276.36 and 7,274.87

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Solution

The fourth proportional to 13,242.65, 18,276.36 and 7,274.87 is: 10,040.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,242.65 : 18,276.36 = 7,274.87 : x
  2. Step 2: Convert to fraction form
    13,242.65/18,276.36 = 7,274.87/x
  3. Step 3: Cross multiply
    13,242.65x = 18,276.36 × 7,274.87
  4. Step 4: Simplify right side
    13,242.65x = 132,958,051.69
  5. Step 5: Solve for x
    x = 132,958,051.69/13,242.65
  6. Step 6: Final answer
    x = 10,040.14

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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.