Home / 10,903.96-15,047.32-6,427.90

Finding the Fourth Proportional to 10,903.96, 15,047.32 and 6,427.90

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Solution

The fourth proportional to 10,903.96, 15,047.32 and 6,427.90 is: 8,870.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,903.96 : 15,047.32 = 6,427.90 : x
  2. Step 2: Convert to fraction form
    10,903.96/15,047.32 = 6,427.90/x
  3. Step 3: Cross multiply
    10,903.96x = 15,047.32 × 6,427.90
  4. Step 4: Simplify right side
    10,903.96x = 96,722,668.23
  5. Step 5: Solve for x
    x = 96,722,668.23/10,903.96
  6. Step 6: Final answer
    x = 8,870.42

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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.