Home / 13,084.13-18,056.44-7,116.15

Finding the Fourth Proportional to 13,084.13, 18,056.44 and 7,116.15

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Solution

The fourth proportional to 13,084.13, 18,056.44 and 7,116.15 is: 9,820.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,084.13 : 18,056.44 = 7,116.15 : x
  2. Step 2: Convert to fraction form
    13,084.13/18,056.44 = 7,116.15/x
  3. Step 3: Cross multiply
    13,084.13x = 18,056.44 × 7,116.15
  4. Step 4: Simplify right side
    13,084.13x = 128,492,335.51
  5. Step 5: Solve for x
    x = 128,492,335.51/13,084.13
  6. Step 6: Final answer
    x = 9,820.47

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Half scale
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Double scale
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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.