Home / 7,623.18-10,518.36-4,478.22

Finding the Fourth Proportional to 7,623.18, 10,518.36 and 4,478.22

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Solution

The fourth proportional to 7,623.18, 10,518.36 and 4,478.22 is: 6,178.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,623.18 : 10,518.36 = 4,478.22 : x
  2. Step 2: Convert to fraction form
    7,623.18/10,518.36 = 4,478.22/x
  3. Step 3: Cross multiply
    7,623.18x = 10,518.36 × 4,478.22
  4. Step 4: Simplify right side
    7,623.18x = 47,103,530.12
  5. Step 5: Solve for x
    x = 47,103,530.12/7,623.18
  6. Step 6: Final answer
    x = 6,178.99

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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.