Home / 13,237.40-18,271.50-8,523.20

Finding the Fourth Proportional to 13,237.40, 18,271.50 and 8,523.20

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Solution

The fourth proportional to 13,237.40, 18,271.50 and 8,523.20 is: 11,764.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,237.40 : 18,271.50 = 8,523.20 : x
  2. Step 2: Convert to fraction form
    13,237.40/18,271.50 = 8,523.20/x
  3. Step 3: Cross multiply
    13,237.40x = 18,271.50 × 8,523.20
  4. Step 4: Simplify right side
    13,237.40x = 155,731,648.80
  5. Step 5: Solve for x
    x = 155,731,648.80/13,237.40
  6. Step 6: Final answer
    x = 11,764.52

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Double scale
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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.