Home / 8,319.09-11,471.57-6,430.98

Finding the Fourth Proportional to 8,319.09, 11,471.57 and 6,430.98

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Solution

The fourth proportional to 8,319.09, 11,471.57 and 6,430.98 is: 8,867.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,319.09 : 11,471.57 = 6,430.98 : x
  2. Step 2: Convert to fraction form
    8,319.09/11,471.57 = 6,430.98/x
  3. Step 3: Cross multiply
    8,319.09x = 11,471.57 × 6,430.98
  4. Step 4: Simplify right side
    8,319.09x = 73,773,437.24
  5. Step 5: Solve for x
    x = 73,773,437.24/8,319.09
  6. Step 6: Final answer
    x = 8,867.97

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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.