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Finding the Fourth Proportional to 10,423.79, 14,387.06 and 6,646.08

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Solution

The fourth proportional to 10,423.79, 14,387.06 and 6,646.08 is: 9,173.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,423.79 : 14,387.06 = 6,646.08 : x
  2. Step 2: Convert to fraction form
    10,423.79/14,387.06 = 6,646.08/x
  3. Step 3: Cross multiply
    10,423.79x = 14,387.06 × 6,646.08
  4. Step 4: Simplify right side
    10,423.79x = 95,617,518.49
  5. Step 5: Solve for x
    x = 95,617,518.49/10,423.79
  6. Step 6: Final answer
    x = 9,173.01

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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.