Home / 18,886.88-26,062.54-10,389.60

Finding the Fourth Proportional to 18,886.88, 26,062.54 and 10,389.60

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Solution

The fourth proportional to 18,886.88, 26,062.54 and 10,389.60 is: 14,336.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,886.88 : 26,062.54 = 10,389.60 : x
  2. Step 2: Convert to fraction form
    18,886.88/26,062.54 = 10,389.60/x
  3. Step 3: Cross multiply
    18,886.88x = 26,062.54 × 10,389.60
  4. Step 4: Simplify right side
    18,886.88x = 270,779,365.58
  5. Step 5: Solve for x
    x = 270,779,365.58/18,886.88
  6. Step 6: Final answer
    x = 14,336.90

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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.