Home / 15,004.30-20,703.78-8,543.38

Finding the Fourth Proportional to 15,004.30, 20,703.78 and 8,543.38

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Solution

The fourth proportional to 15,004.30, 20,703.78 and 8,543.38 is: 11,788.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,004.30 : 20,703.78 = 8,543.38 : x
  2. Step 2: Convert to fraction form
    15,004.30/20,703.78 = 8,543.38/x
  3. Step 3: Cross multiply
    15,004.30x = 20,703.78 × 8,543.38
  4. Step 4: Simplify right side
    15,004.30x = 176,880,259.98
  5. Step 5: Solve for x
    x = 176,880,259.98/15,004.30
  6. Step 6: Final answer
    x = 11,788.64

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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.