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Finding the Fourth Proportional to 9,980.46, 14,973.43 and 7,907.40

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Solution

The fourth proportional to 9,980.46, 14,973.43 and 7,907.40 is: 11,863.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,980.46 : 14,973.43 = 7,907.40 : x
  2. Step 2: Convert to fraction form
    9,980.46/14,973.43 = 7,907.40/x
  3. Step 3: Cross multiply
    9,980.46x = 14,973.43 × 7,907.40
  4. Step 4: Simplify right side
    9,980.46x = 118,400,918.05
  5. Step 5: Solve for x
    x = 118,400,918.05/9,980.46
  6. Step 6: Final answer
    x = 11,863.27

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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.