Home / 12,258.21-18,371.12-4,459.53

Finding the Fourth Proportional to 12,258.21, 18,371.12 and 4,459.53

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Solution

The fourth proportional to 12,258.21, 18,371.12 and 4,459.53 is: 6,683.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,258.21 : 18,371.12 = 4,459.53 : x
  2. Step 2: Convert to fraction form
    12,258.21/18,371.12 = 4,459.53/x
  3. Step 3: Cross multiply
    12,258.21x = 18,371.12 × 4,459.53
  4. Step 4: Simplify right side
    12,258.21x = 81,926,538.48
  5. Step 5: Solve for x
    x = 81,926,538.48/12,258.21
  6. Step 6: Final answer
    x = 6,683.40

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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.