Home / 15,017.64-20,722.53-8,302.36

Finding the Fourth Proportional to 15,017.64, 20,722.53 and 8,302.36

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Solution

The fourth proportional to 15,017.64, 20,722.53 and 8,302.36 is: 11,456.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,017.64 : 20,722.53 = 8,302.36 : x
  2. Step 2: Convert to fraction form
    15,017.64/20,722.53 = 8,302.36/x
  3. Step 3: Cross multiply
    15,017.64x = 20,722.53 × 8,302.36
  4. Step 4: Simplify right side
    15,017.64x = 172,045,779.80
  5. Step 5: Solve for x
    x = 172,045,779.80/15,017.64
  6. Step 6: Final answer
    x = 11,456.25

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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.