Home / 8,570.06-12,856.98-3,643.92

Finding the Fourth Proportional to 8,570.06, 12,856.98 and 3,643.92

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Solution

The fourth proportional to 8,570.06, 12,856.98 and 3,643.92 is: 5,466.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,570.06 : 12,856.98 = 3,643.92 : x
  2. Step 2: Convert to fraction form
    8,570.06/12,856.98 = 3,643.92/x
  3. Step 3: Cross multiply
    8,570.06x = 12,856.98 × 3,643.92
  4. Step 4: Simplify right side
    8,570.06x = 46,849,806.56
  5. Step 5: Solve for x
    x = 46,849,806.56/8,570.06
  6. Step 6: Final answer
    x = 5,466.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.