Home / 13,935.77-19,230.09-8,269.55

Finding the Fourth Proportional to 13,935.77, 19,230.09 and 8,269.55

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Solution

The fourth proportional to 13,935.77, 19,230.09 and 8,269.55 is: 11,411.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,935.77 : 19,230.09 = 8,269.55 : x
  2. Step 2: Convert to fraction form
    13,935.77/19,230.09 = 8,269.55/x
  3. Step 3: Cross multiply
    13,935.77x = 19,230.09 × 8,269.55
  4. Step 4: Simplify right side
    13,935.77x = 159,024,094.61
  5. Step 5: Solve for x
    x = 159,024,094.61/13,935.77
  6. Step 6: Final answer
    x = 11,411.22

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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.