Home / 7,622.79-10,518.18-4,479.58

Finding the Fourth Proportional to 7,622.79, 10,518.18 and 4,479.58

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Solution

The fourth proportional to 7,622.79, 10,518.18 and 4,479.58 is: 6,181.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,622.79 : 10,518.18 = 4,479.58 : x
  2. Step 2: Convert to fraction form
    7,622.79/10,518.18 = 4,479.58/x
  3. Step 3: Cross multiply
    7,622.79x = 10,518.18 × 4,479.58
  4. Step 4: Simplify right side
    7,622.79x = 47,117,006.37
  5. Step 5: Solve for x
    x = 47,117,006.37/7,622.79
  6. Step 6: Final answer
    x = 6,181.08

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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.