Home / 13,036.40-19,554.60-4,272.20

Finding the Fourth Proportional to 13,036.40, 19,554.60 and 4,272.20

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Solution

The fourth proportional to 13,036.40, 19,554.60 and 4,272.20 is: 6,408.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,036.40 : 19,554.60 = 4,272.20 : x
  2. Step 2: Convert to fraction form
    13,036.40/19,554.60 = 4,272.20/x
  3. Step 3: Cross multiply
    13,036.40x = 19,554.60 × 4,272.20
  4. Step 4: Simplify right side
    13,036.40x = 83,541,162.12
  5. Step 5: Solve for x
    x = 83,541,162.12/13,036.40
  6. Step 6: Final answer
    x = 6,408.30

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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.