Home / 18,918.41-26,116.25-10,959.08

Finding the Fourth Proportional to 18,918.41, 26,116.25 and 10,959.08

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Solution

The fourth proportional to 18,918.41, 26,116.25 and 10,959.08 is: 15,128.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,918.41 : 26,116.25 = 10,959.08 : x
  2. Step 2: Convert to fraction form
    18,918.41/26,116.25 = 10,959.08/x
  3. Step 3: Cross multiply
    18,918.41x = 26,116.25 × 10,959.08
  4. Step 4: Simplify right side
    18,918.41x = 286,209,887.67
  5. Step 5: Solve for x
    x = 286,209,887.67/18,918.41
  6. Step 6: Final answer
    x = 15,128.65

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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.