Home / 9,643.40-13,309.32-6,106.92

Finding the Fourth Proportional to 9,643.40, 13,309.32 and 6,106.92

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Solution

The fourth proportional to 9,643.40, 13,309.32 and 6,106.92 is: 8,428.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,643.40 : 13,309.32 = 6,106.92 : x
  2. Step 2: Convert to fraction form
    9,643.40/13,309.32 = 6,106.92/x
  3. Step 3: Cross multiply
    9,643.40x = 13,309.32 × 6,106.92
  4. Step 4: Simplify right side
    9,643.40x = 81,278,952.49
  5. Step 5: Solve for x
    x = 81,278,952.49/9,643.40
  6. Step 6: Final answer
    x = 8,428.45

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Half scale
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Double scale
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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.