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Finding the Fourth Proportional to 10,973.40, 16,460.10 and 9,720.60

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Solution

The fourth proportional to 10,973.40, 16,460.10 and 9,720.60 is: 14,580.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,973.40 : 16,460.10 = 9,720.60 : x
  2. Step 2: Convert to fraction form
    10,973.40/16,460.10 = 9,720.60/x
  3. Step 3: Cross multiply
    10,973.40x = 16,460.10 × 9,720.60
  4. Step 4: Simplify right side
    10,973.40x = 160,002,048.06
  5. Step 5: Solve for x
    x = 160,002,048.06/10,973.40
  6. Step 6: Final answer
    x = 14,580.90

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.