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Finding the Fourth Proportional to 6,718.89, 10,010.80 and 6,341.63

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Solution

The fourth proportional to 6,718.89, 10,010.80 and 6,341.63 is: 9,448.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,718.89 : 10,010.80 = 6,341.63 : x
  2. Step 2: Convert to fraction form
    6,718.89/10,010.80 = 6,341.63/x
  3. Step 3: Cross multiply
    6,718.89x = 10,010.80 × 6,341.63
  4. Step 4: Simplify right side
    6,718.89x = 63,484,789.60
  5. Step 5: Solve for x
    x = 63,484,789.60/6,718.89
  6. Step 6: Final answer
    x = 9,448.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.