Home / 12,384.78-18,579.93-6,148.20

Finding the Fourth Proportional to 12,384.78, 18,579.93 and 6,148.20

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Solution

The fourth proportional to 12,384.78, 18,579.93 and 6,148.20 is: 9,223.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,384.78 : 18,579.93 = 6,148.20 : x
  2. Step 2: Convert to fraction form
    12,384.78/18,579.93 = 6,148.20/x
  3. Step 3: Cross multiply
    12,384.78x = 18,579.93 × 6,148.20
  4. Step 4: Simplify right side
    12,384.78x = 114,233,125.63
  5. Step 5: Solve for x
    x = 114,233,125.63/12,384.78
  6. Step 6: Final answer
    x = 9,223.67

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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.