Home / 15,190.74-20,967.62-8,818.76

Finding the Fourth Proportional to 15,190.74, 20,967.62 and 8,818.76

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Solution

The fourth proportional to 15,190.74, 20,967.62 and 8,818.76 is: 12,172.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,190.74 : 20,967.62 = 8,818.76 : x
  2. Step 2: Convert to fraction form
    15,190.74/20,967.62 = 8,818.76/x
  3. Step 3: Cross multiply
    15,190.74x = 20,967.62 × 8,818.76
  4. Step 4: Simplify right side
    15,190.74x = 184,908,410.63
  5. Step 5: Solve for x
    x = 184,908,410.63/15,190.74
  6. Step 6: Final answer
    x = 12,172.44

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Half scale
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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.