Home / 14,428.40-21,642.60-11,512.40

Finding the Fourth Proportional to 14,428.40, 21,642.60 and 11,512.40

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Solution

The fourth proportional to 14,428.40, 21,642.60 and 11,512.40 is: 17,268.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,428.40 : 21,642.60 = 11,512.40 : x
  2. Step 2: Convert to fraction form
    14,428.40/21,642.60 = 11,512.40/x
  3. Step 3: Cross multiply
    14,428.40x = 21,642.60 × 11,512.40
  4. Step 4: Simplify right side
    14,428.40x = 249,158,268.24
  5. Step 5: Solve for x
    x = 249,158,268.24/14,428.40
  6. Step 6: Final answer
    x = 17,268.60

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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.