Home / 13,859.04-19,116.72-9,665.76

Finding the Fourth Proportional to 13,859.04, 19,116.72 and 9,665.76

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Solution

The fourth proportional to 13,859.04, 19,116.72 and 9,665.76 is: 13,332.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,859.04 : 19,116.72 = 9,665.76 : x
  2. Step 2: Convert to fraction form
    13,859.04/19,116.72 = 9,665.76/x
  3. Step 3: Cross multiply
    13,859.04x = 19,116.72 × 9,665.76
  4. Step 4: Simplify right side
    13,859.04x = 184,777,627.51
  5. Step 5: Solve for x
    x = 184,777,627.51/13,859.04
  6. Step 6: Final answer
    x = 13,332.64

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Similar ratio
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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.