Home / 18,742.64-28,116.84-6,258.80

Finding the Fourth Proportional to 18,742.64, 28,116.84 and 6,258.80

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Solution

The fourth proportional to 18,742.64, 28,116.84 and 6,258.80 is: 9,389.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,742.64 : 28,116.84 = 6,258.80 : x
  2. Step 2: Convert to fraction form
    18,742.64/28,116.84 = 6,258.80/x
  3. Step 3: Cross multiply
    18,742.64x = 28,116.84 × 6,258.80
  4. Step 4: Simplify right side
    18,742.64x = 175,977,678.19
  5. Step 5: Solve for x
    x = 175,977,678.19/18,742.64
  6. Step 6: Final answer
    x = 9,389.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.