Home / 18,985.23-26,194.35-10,918.44

Finding the Fourth Proportional to 18,985.23, 26,194.35 and 10,918.44

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Solution

The fourth proportional to 18,985.23, 26,194.35 and 10,918.44 is: 15,064.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,985.23 : 26,194.35 = 10,918.44 : x
  2. Step 2: Convert to fraction form
    18,985.23/26,194.35 = 10,918.44/x
  3. Step 3: Cross multiply
    18,985.23x = 26,194.35 × 10,918.44
  4. Step 4: Simplify right side
    18,985.23x = 286,001,438.81
  5. Step 5: Solve for x
    x = 286,001,438.81/18,985.23
  6. Step 6: Final answer
    x = 15,064.42

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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.