Home / 7,518.50-10,375.53-4,376.78

Finding the Fourth Proportional to 7,518.50, 10,375.53 and 4,376.78

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Solution

The fourth proportional to 7,518.50, 10,375.53 and 4,376.78 is: 6,039.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,518.50 : 10,375.53 = 4,376.78 : x
  2. Step 2: Convert to fraction form
    7,518.50/10,375.53 = 4,376.78/x
  3. Step 3: Cross multiply
    7,518.50x = 10,375.53 × 4,376.78
  4. Step 4: Simplify right side
    7,518.50x = 45,411,412.19
  5. Step 5: Solve for x
    x = 45,411,412.19/7,518.50
  6. Step 6: Final answer
    x = 6,039.96

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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.