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Finding the Fourth Proportional to 14,058.77, 21,077.74 and 8,510.81

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Solution

The fourth proportional to 14,058.77, 21,077.74 and 8,510.81 is: 12,759.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,058.77 : 21,077.74 = 8,510.81 : x
  2. Step 2: Convert to fraction form
    14,058.77/21,077.74 = 8,510.81/x
  3. Step 3: Cross multiply
    14,058.77x = 21,077.74 × 8,510.81
  4. Step 4: Simplify right side
    14,058.77x = 179,388,640.37
  5. Step 5: Solve for x
    x = 179,388,640.37/14,058.77
  6. Step 6: Final answer
    x = 12,759.91

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1.5x scale

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.