Home / 6,948.86-10,428.75-4,178.66

Finding the Fourth Proportional to 6,948.86, 10,428.75 and 4,178.66

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Solution

The fourth proportional to 6,948.86, 10,428.75 and 4,178.66 is: 6,271.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,948.86 : 10,428.75 = 4,178.66 : x
  2. Step 2: Convert to fraction form
    6,948.86/10,428.75 = 4,178.66/x
  3. Step 3: Cross multiply
    6,948.86x = 10,428.75 × 4,178.66
  4. Step 4: Simplify right side
    6,948.86x = 43,578,148.33
  5. Step 5: Solve for x
    x = 43,578,148.33/6,948.86
  6. Step 6: Final answer
    x = 6,271.27

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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.