Home / 13,084.68-18,056.99-7,116.49

Finding the Fourth Proportional to 13,084.68, 18,056.99 and 7,116.49

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Solution

The fourth proportional to 13,084.68, 18,056.99 and 7,116.49 is: 9,820.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,084.68 : 18,056.99 = 7,116.49 : x
  2. Step 2: Convert to fraction form
    13,084.68/18,056.99 = 7,116.49/x
  3. Step 3: Cross multiply
    13,084.68x = 18,056.99 × 7,116.49
  4. Step 4: Simplify right side
    13,084.68x = 128,502,298.48
  5. Step 5: Solve for x
    x = 128,502,298.48/13,084.68
  6. Step 6: Final answer
    x = 9,820.82

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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.