Home / 7,670.16-11,476.60-6,424.40

Finding the Fourth Proportional to 7,670.16, 11,476.60 and 6,424.40

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Solution

The fourth proportional to 7,670.16, 11,476.60 and 6,424.40 is: 9,612.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,670.16 : 11,476.60 = 6,424.40 : x
  2. Step 2: Convert to fraction form
    7,670.16/11,476.60 = 6,424.40/x
  3. Step 3: Cross multiply
    7,670.16x = 11,476.60 × 6,424.40
  4. Step 4: Simplify right side
    7,670.16x = 73,730,269.04
  5. Step 5: Solve for x
    x = 73,730,269.04/7,670.16
  6. Step 6: Final answer
    x = 9,612.61

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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.