Home / 12,914.96-17,788.70-9,925.07

Finding the Fourth Proportional to 12,914.96, 17,788.70 and 9,925.07

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Solution

The fourth proportional to 12,914.96, 17,788.70 and 9,925.07 is: 13,670.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,914.96 : 17,788.70 = 9,925.07 : x
  2. Step 2: Convert to fraction form
    12,914.96/17,788.70 = 9,925.07/x
  3. Step 3: Cross multiply
    12,914.96x = 17,788.70 × 9,925.07
  4. Step 4: Simplify right side
    12,914.96x = 176,554,043.08
  5. Step 5: Solve for x
    x = 176,554,043.08/12,914.96
  6. Step 6: Final answer
    x = 13,670.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.