Home / 12,035.78-18,056.80-5,013.58

Finding the Fourth Proportional to 12,035.78, 18,056.80 and 5,013.58

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Solution

The fourth proportional to 12,035.78, 18,056.80 and 5,013.58 is: 7,521.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,035.78 : 18,056.80 = 5,013.58 : x
  2. Step 2: Convert to fraction form
    12,035.78/18,056.80 = 5,013.58/x
  3. Step 3: Cross multiply
    12,035.78x = 18,056.80 × 5,013.58
  4. Step 4: Simplify right side
    12,035.78x = 90,529,211.34
  5. Step 5: Solve for x
    x = 90,529,211.34/12,035.78
  6. Step 6: Final answer
    x = 7,521.67

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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.