Home / 12,534.48-18,781.20-7,605.63

Finding the Fourth Proportional to 12,534.48, 18,781.20 and 7,605.63

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Solution

The fourth proportional to 12,534.48, 18,781.20 and 7,605.63 is: 11,395.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,534.48 : 18,781.20 = 7,605.63 : x
  2. Step 2: Convert to fraction form
    12,534.48/18,781.20 = 7,605.63/x
  3. Step 3: Cross multiply
    12,534.48x = 18,781.20 × 7,605.63
  4. Step 4: Simplify right side
    12,534.48x = 142,842,858.16
  5. Step 5: Solve for x
    x = 142,842,858.16/12,534.48
  6. Step 6: Final answer
    x = 11,395.99

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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.