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Finding the Fourth Proportional to 6,664.80, 10,018.80 and 4,730.40

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Solution

The fourth proportional to 6,664.80, 10,018.80 and 4,730.40 is: 7,110.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,664.80 : 10,018.80 = 4,730.40 : x
  2. Step 2: Convert to fraction form
    6,664.80/10,018.80 = 4,730.40/x
  3. Step 3: Cross multiply
    6,664.80x = 10,018.80 × 4,730.40
  4. Step 4: Simplify right side
    6,664.80x = 47,392,931.52
  5. Step 5: Solve for x
    x = 47,392,931.52/6,664.80
  6. Step 6: Final answer
    x = 7,110.93

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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.