Home / 10,002.12-15,000.54-2,980.26

Finding the Fourth Proportional to 10,002.12, 15,000.54 and 2,980.26

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Solution

The fourth proportional to 10,002.12, 15,000.54 and 2,980.26 is: 4,469.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,002.12 : 15,000.54 = 2,980.26 : x
  2. Step 2: Convert to fraction form
    10,002.12/15,000.54 = 2,980.26/x
  3. Step 3: Cross multiply
    10,002.12x = 15,000.54 × 2,980.26
  4. Step 4: Simplify right side
    10,002.12x = 44,705,509.34
  5. Step 5: Solve for x
    x = 44,705,509.34/10,002.12
  6. Step 6: Final answer
    x = 4,469.60

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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.