Home / 8,935.49-12,331.54-5,159.35

Finding the Fourth Proportional to 8,935.49, 12,331.54 and 5,159.35

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Solution

The fourth proportional to 8,935.49, 12,331.54 and 5,159.35 is: 7,120.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,935.49 : 12,331.54 = 5,159.35 : x
  2. Step 2: Convert to fraction form
    8,935.49/12,331.54 = 5,159.35/x
  3. Step 3: Cross multiply
    8,935.49x = 12,331.54 × 5,159.35
  4. Step 4: Simplify right side
    8,935.49x = 63,622,730.90
  5. Step 5: Solve for x
    x = 63,622,730.90/8,935.49
  6. Step 6: Final answer
    x = 7,120.23

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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.