Home / 15,269.08-21,071.09-8,554.69

Finding the Fourth Proportional to 15,269.08, 21,071.09 and 8,554.69

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Solution

The fourth proportional to 15,269.08, 21,071.09 and 8,554.69 is: 11,805.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,269.08 : 21,071.09 = 8,554.69 : x
  2. Step 2: Convert to fraction form
    15,269.08/21,071.09 = 8,554.69/x
  3. Step 3: Cross multiply
    15,269.08x = 21,071.09 × 8,554.69
  4. Step 4: Simplify right side
    15,269.08x = 180,256,642.91
  5. Step 5: Solve for x
    x = 180,256,642.91/15,269.08
  6. Step 6: Final answer
    x = 11,805.34

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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.