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Finding the Fourth Proportional to 10,842.51, 14,962.89 and 6,126.90

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Solution

The fourth proportional to 10,842.51, 14,962.89 and 6,126.90 is: 8,455.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,842.51 : 14,962.89 = 6,126.90 : x
  2. Step 2: Convert to fraction form
    10,842.51/14,962.89 = 6,126.90/x
  3. Step 3: Cross multiply
    10,842.51x = 14,962.89 × 6,126.90
  4. Step 4: Simplify right side
    10,842.51x = 91,676,130.74
  5. Step 5: Solve for x
    x = 91,676,130.74/10,842.51
  6. Step 6: Final answer
    x = 8,455.25

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.