Home / 15,340.33-21,171.39-8,535.02

Finding the Fourth Proportional to 15,340.33, 21,171.39 and 8,535.02

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Solution

The fourth proportional to 15,340.33, 21,171.39 and 8,535.02 is: 11,779.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,340.33 : 21,171.39 = 8,535.02 : x
  2. Step 2: Convert to fraction form
    15,340.33/21,171.39 = 8,535.02/x
  3. Step 3: Cross multiply
    15,340.33x = 21,171.39 × 8,535.02
  4. Step 4: Simplify right side
    15,340.33x = 180,698,237.08
  5. Step 5: Solve for x
    x = 180,698,237.08/15,340.33
  6. Step 6: Final answer
    x = 11,779.30

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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.