Home / 11,376.09-15,699.02-6,340.20

Finding the Fourth Proportional to 11,376.09, 15,699.02 and 6,340.20

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Solution

The fourth proportional to 11,376.09, 15,699.02 and 6,340.20 is: 8,749.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,376.09 : 15,699.02 = 6,340.20 : x
  2. Step 2: Convert to fraction form
    11,376.09/15,699.02 = 6,340.20/x
  3. Step 3: Cross multiply
    11,376.09x = 15,699.02 × 6,340.20
  4. Step 4: Simplify right side
    11,376.09x = 99,534,894.90
  5. Step 5: Solve for x
    x = 99,534,894.90/11,376.09
  6. Step 6: Final answer
    x = 8,749.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.