Home / 11,319.43-15,620.06-6,283.40

Finding the Fourth Proportional to 11,319.43, 15,620.06 and 6,283.40

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Solution

The fourth proportional to 11,319.43, 15,620.06 and 6,283.40 is: 8,670.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,319.43 : 15,620.06 = 6,283.40 : x
  2. Step 2: Convert to fraction form
    11,319.43/15,620.06 = 6,283.40/x
  3. Step 3: Cross multiply
    11,319.43x = 15,620.06 × 6,283.40
  4. Step 4: Simplify right side
    11,319.43x = 98,146,995.01
  5. Step 5: Solve for x
    x = 98,146,995.01/11,319.43
  6. Step 6: Final answer
    x = 8,670.67

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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.