Home / 16,680.40-23,015.55-9,609.10

Finding the Fourth Proportional to 16,680.40, 23,015.55 and 9,609.10

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Solution

The fourth proportional to 16,680.40, 23,015.55 and 9,609.10 is: 13,258.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,680.40 : 23,015.55 = 9,609.10 : x
  2. Step 2: Convert to fraction form
    16,680.40/23,015.55 = 9,609.10/x
  3. Step 3: Cross multiply
    16,680.40x = 23,015.55 × 9,609.10
  4. Step 4: Simplify right side
    16,680.40x = 221,158,721.51
  5. Step 5: Solve for x
    x = 221,158,721.51/16,680.40
  6. Step 6: Final answer
    x = 13,258.60

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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.