Home / 12,412.48-18,618.96-9,935.80

Finding the Fourth Proportional to 12,412.48, 18,618.96 and 9,935.80

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Solution

The fourth proportional to 12,412.48, 18,618.96 and 9,935.80 is: 14,903.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,412.48 : 18,618.96 = 9,935.80 : x
  2. Step 2: Convert to fraction form
    12,412.48/18,618.96 = 9,935.80/x
  3. Step 3: Cross multiply
    12,412.48x = 18,618.96 × 9,935.80
  4. Step 4: Simplify right side
    12,412.48x = 184,994,262.77
  5. Step 5: Solve for x
    x = 184,994,262.77/12,412.48
  6. Step 6: Final answer
    x = 14,903.89

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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.