Home / 10,018.72-15,030.32-6,126.40

Finding the Fourth Proportional to 10,018.72, 15,030.32 and 6,126.40

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Solution

The fourth proportional to 10,018.72, 15,030.32 and 6,126.40 is: 9,190.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,018.72 : 15,030.32 = 6,126.40 : x
  2. Step 2: Convert to fraction form
    10,018.72/15,030.32 = 6,126.40/x
  3. Step 3: Cross multiply
    10,018.72x = 15,030.32 × 6,126.40
  4. Step 4: Simplify right side
    10,018.72x = 92,081,752.45
  5. Step 5: Solve for x
    x = 92,081,752.45/10,018.72
  6. Step 6: Final answer
    x = 9,190.97

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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.