Home / 18,342.09-25,312.19-10,788.74

Finding the Fourth Proportional to 18,342.09, 25,312.19 and 10,788.74

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Solution

The fourth proportional to 18,342.09, 25,312.19 and 10,788.74 is: 14,888.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,342.09 : 25,312.19 = 10,788.74 : x
  2. Step 2: Convert to fraction form
    18,342.09/25,312.19 = 10,788.74/x
  3. Step 3: Cross multiply
    18,342.09x = 25,312.19 × 10,788.74
  4. Step 4: Simplify right side
    18,342.09x = 273,086,636.74
  5. Step 5: Solve for x
    x = 273,086,636.74/18,342.09
  6. Step 6: Final answer
    x = 14,888.52

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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.