Home / 10,203.30-15,292.80-5,270.40

Finding the Fourth Proportional to 10,203.30, 15,292.80 and 5,270.40

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Solution

The fourth proportional to 10,203.30, 15,292.80 and 5,270.40 is: 7,899.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,203.30 : 15,292.80 = 5,270.40 : x
  2. Step 2: Convert to fraction form
    10,203.30/15,292.80 = 5,270.40/x
  3. Step 3: Cross multiply
    10,203.30x = 15,292.80 × 5,270.40
  4. Step 4: Simplify right side
    10,203.30x = 80,599,173.12
  5. Step 5: Solve for x
    x = 80,599,173.12/10,203.30
  6. Step 6: Final answer
    x = 7,899.32

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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.