Home / 10,420.04-14,380.67-6,172.47

Finding the Fourth Proportional to 10,420.04, 14,380.67 and 6,172.47

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Solution

The fourth proportional to 10,420.04, 14,380.67 and 6,172.47 is: 8,518.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,420.04 : 14,380.67 = 6,172.47 : x
  2. Step 2: Convert to fraction form
    10,420.04/14,380.67 = 6,172.47/x
  3. Step 3: Cross multiply
    10,420.04x = 14,380.67 × 6,172.47
  4. Step 4: Simplify right side
    10,420.04x = 88,764,269.59
  5. Step 5: Solve for x
    x = 88,764,269.59/10,420.04
  6. Step 6: Final answer
    x = 8,518.61

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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.