Home / 10,890.12-15,023.86-6,466.44

Finding the Fourth Proportional to 10,890.12, 15,023.86 and 6,466.44

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Solution

The fourth proportional to 10,890.12, 15,023.86 and 6,466.44 is: 8,921.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,890.12 : 15,023.86 = 6,466.44 : x
  2. Step 2: Convert to fraction form
    10,890.12/15,023.86 = 6,466.44/x
  3. Step 3: Cross multiply
    10,890.12x = 15,023.86 × 6,466.44
  4. Step 4: Simplify right side
    10,890.12x = 97,150,889.26
  5. Step 5: Solve for x
    x = 97,150,889.26/10,890.12
  6. Step 6: Final answer
    x = 8,921.01

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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.