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Finding the Fourth Proportional to 8,973.48, 13,490.63 and 7,230.71

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Solution

The fourth proportional to 8,973.48, 13,490.63 and 7,230.71 is: 10,870.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,973.48 : 13,490.63 = 7,230.71 : x
  2. Step 2: Convert to fraction form
    8,973.48/13,490.63 = 7,230.71/x
  3. Step 3: Cross multiply
    8,973.48x = 13,490.63 × 7,230.71
  4. Step 4: Simplify right side
    8,973.48x = 97,546,797.09
  5. Step 5: Solve for x
    x = 97,546,797.09/8,973.48
  6. Step 6: Final answer
    x = 10,870.56

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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.