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Finding the Fourth Proportional to 7,001.56, 9,664.05 and 4,018.96

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Solution

The fourth proportional to 7,001.56, 9,664.05 and 4,018.96 is: 5,547.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,001.56 : 9,664.05 = 4,018.96 : x
  2. Step 2: Convert to fraction form
    7,001.56/9,664.05 = 4,018.96/x
  3. Step 3: Cross multiply
    7,001.56x = 9,664.05 × 4,018.96
  4. Step 4: Simplify right side
    7,001.56x = 38,839,430.39
  5. Step 5: Solve for x
    x = 38,839,430.39/7,001.56
  6. Step 6: Final answer
    x = 5,547.25

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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.