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Finding the Fourth Proportional to 9,660.40, 14,360.29 and 9,376.63

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Solution

The fourth proportional to 9,660.40, 14,360.29 and 9,376.63 is: 13,938.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,660.40 : 14,360.29 = 9,376.63 : x
  2. Step 2: Convert to fraction form
    9,660.40/14,360.29 = 9,376.63/x
  3. Step 3: Cross multiply
    9,660.40x = 14,360.29 × 9,376.63
  4. Step 4: Simplify right side
    9,660.40x = 134,651,066.68
  5. Step 5: Solve for x
    x = 134,651,066.68/9,660.40
  6. Step 6: Final answer
    x = 13,938.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.