Home / 10,203.09-15,312.84-5,274.18

Finding the Fourth Proportional to 10,203.09, 15,312.84 and 5,274.18

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Solution

The fourth proportional to 10,203.09, 15,312.84 and 5,274.18 is: 7,915.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,203.09 : 15,312.84 = 5,274.18 : x
  2. Step 2: Convert to fraction form
    10,203.09/15,312.84 = 5,274.18/x
  3. Step 3: Cross multiply
    10,203.09x = 15,312.84 × 5,274.18
  4. Step 4: Simplify right side
    10,203.09x = 80,762,674.47
  5. Step 5: Solve for x
    x = 80,762,674.47/10,203.09
  6. Step 6: Final answer
    x = 7,915.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.