Home / 10,018.86-15,031.17-2,999.40

Finding the Fourth Proportional to 10,018.86, 15,031.17 and 2,999.40

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Solution

The fourth proportional to 10,018.86, 15,031.17 and 2,999.40 is: 4,499.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,018.86 : 15,031.17 = 2,999.40 : x
  2. Step 2: Convert to fraction form
    10,018.86/15,031.17 = 2,999.40/x
  3. Step 3: Cross multiply
    10,018.86x = 15,031.17 × 2,999.40
  4. Step 4: Simplify right side
    10,018.86x = 45,084,491.30
  5. Step 5: Solve for x
    x = 45,084,491.30/10,018.86
  6. Step 6: Final answer
    x = 4,499.96

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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.