Home / 7,623.62-11,420.64-5,618.67

Finding the Fourth Proportional to 7,623.62, 11,420.64 and 5,618.67

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Solution

The fourth proportional to 7,623.62, 11,420.64 and 5,618.67 is: 8,417.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,623.62 : 11,420.64 = 5,618.67 : x
  2. Step 2: Convert to fraction form
    7,623.62/11,420.64 = 5,618.67/x
  3. Step 3: Cross multiply
    7,623.62x = 11,420.64 × 5,618.67
  4. Step 4: Simplify right side
    7,623.62x = 64,168,807.35
  5. Step 5: Solve for x
    x = 64,168,807.35/7,623.62
  6. Step 6: Final answer
    x = 8,417.10

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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.