Home / 13,084.65-18,056.73-7,116.30

Finding the Fourth Proportional to 13,084.65, 18,056.73 and 7,116.30

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Solution

The fourth proportional to 13,084.65, 18,056.73 and 7,116.30 is: 9,820.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,084.65 : 18,056.73 = 7,116.30 : x
  2. Step 2: Convert to fraction form
    13,084.65/18,056.73 = 7,116.30/x
  3. Step 3: Cross multiply
    13,084.65x = 18,056.73 × 7,116.30
  4. Step 4: Simplify right side
    13,084.65x = 128,497,107.70
  5. Step 5: Solve for x
    x = 128,497,107.70/13,084.65
  6. Step 6: Final answer
    x = 9,820.45

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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.