Home / 8,670.50-12,999.48-5,152.17

Finding the Fourth Proportional to 8,670.50, 12,999.48 and 5,152.17

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Solution

The fourth proportional to 8,670.50, 12,999.48 and 5,152.17 is: 7,724.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,670.50 : 12,999.48 = 5,152.17 : x
  2. Step 2: Convert to fraction form
    8,670.50/12,999.48 = 5,152.17/x
  3. Step 3: Cross multiply
    8,670.50x = 12,999.48 × 5,152.17
  4. Step 4: Simplify right side
    8,670.50x = 66,975,530.87
  5. Step 5: Solve for x
    x = 66,975,530.87/8,670.50
  6. Step 6: Final answer
    x = 7,724.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.