Home / 13,123.37-19,685.05-4,799.78

Finding the Fourth Proportional to 13,123.37, 19,685.05 and 4,799.78

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Solution

The fourth proportional to 13,123.37, 19,685.05 and 4,799.78 is: 7,199.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,123.37 : 19,685.05 = 4,799.78 : x
  2. Step 2: Convert to fraction form
    13,123.37/19,685.05 = 4,799.78/x
  3. Step 3: Cross multiply
    13,123.37x = 19,685.05 × 4,799.78
  4. Step 4: Simplify right side
    13,123.37x = 94,483,941.55
  5. Step 5: Solve for x
    x = 94,483,941.55/13,123.37
  6. Step 6: Final answer
    x = 7,199.67

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.