Home / 10,905.98-15,047.91-6,366.60

Finding the Fourth Proportional to 10,905.98, 15,047.91 and 6,366.60

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Solution

The fourth proportional to 10,905.98, 15,047.91 and 6,366.60 is: 8,784.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,905.98 : 15,047.91 = 6,366.60 : x
  2. Step 2: Convert to fraction form
    10,905.98/15,047.91 = 6,366.60/x
  3. Step 3: Cross multiply
    10,905.98x = 15,047.91 × 6,366.60
  4. Step 4: Simplify right side
    10,905.98x = 95,803,987.81
  5. Step 5: Solve for x
    x = 95,803,987.81/10,905.98
  6. Step 6: Final answer
    x = 8,784.54

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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.