Home / 7,625.39-10,518.98-6,291.32

Finding the Fourth Proportional to 7,625.39, 10,518.98 and 6,291.32

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Solution

The fourth proportional to 7,625.39, 10,518.98 and 6,291.32 is: 8,678.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,625.39 : 10,518.98 = 6,291.32 : x
  2. Step 2: Convert to fraction form
    7,625.39/10,518.98 = 6,291.32/x
  3. Step 3: Cross multiply
    7,625.39x = 10,518.98 × 6,291.32
  4. Step 4: Simplify right side
    7,625.39x = 66,178,185.20
  5. Step 5: Solve for x
    x = 66,178,185.20/7,625.39
  6. Step 6: Final answer
    x = 8,678.67

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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.