Home / 8,678.07-11,975.74-4,699.17

Finding the Fourth Proportional to 8,678.07, 11,975.74 and 4,699.17

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Solution

The fourth proportional to 8,678.07, 11,975.74 and 4,699.17 is: 6,484.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,678.07 : 11,975.74 = 4,699.17 : x
  2. Step 2: Convert to fraction form
    8,678.07/11,975.74 = 4,699.17/x
  3. Step 3: Cross multiply
    8,678.07x = 11,975.74 × 4,699.17
  4. Step 4: Simplify right side
    8,678.07x = 56,276,026.39
  5. Step 5: Solve for x
    x = 56,276,026.39/8,678.07
  6. Step 6: Final answer
    x = 6,484.86

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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.