Home / 7,740.18-10,671.48-6,322.50

Finding the Fourth Proportional to 7,740.18, 10,671.48 and 6,322.50

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Solution

The fourth proportional to 7,740.18, 10,671.48 and 6,322.50 is: 8,716.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,740.18 : 10,671.48 = 6,322.50 : x
  2. Step 2: Convert to fraction form
    7,740.18/10,671.48 = 6,322.50/x
  3. Step 3: Cross multiply
    7,740.18x = 10,671.48 × 6,322.50
  4. Step 4: Simplify right side
    7,740.18x = 67,470,432.30
  5. Step 5: Solve for x
    x = 67,470,432.30/7,740.18
  6. Step 6: Final answer
    x = 8,716.91

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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.