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Finding the Fourth Proportional to 8,407.71, 11,601.77 and 4,870.26

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Solution

The fourth proportional to 8,407.71, 11,601.77 and 4,870.26 is: 6,720.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,407.71 : 11,601.77 = 4,870.26 : x
  2. Step 2: Convert to fraction form
    8,407.71/11,601.77 = 4,870.26/x
  3. Step 3: Cross multiply
    8,407.71x = 11,601.77 × 4,870.26
  4. Step 4: Simplify right side
    8,407.71x = 56,503,612.01
  5. Step 5: Solve for x
    x = 56,503,612.01/8,407.71
  6. Step 6: Final answer
    x = 6,720.45

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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.