Home / 18,927.08-26,117.38-10,971.80

Finding the Fourth Proportional to 18,927.08, 26,117.38 and 10,971.80

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Solution

The fourth proportional to 18,927.08, 26,117.38 and 10,971.80 is: 15,139.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,927.08 : 26,117.38 = 10,971.80 : x
  2. Step 2: Convert to fraction form
    18,927.08/26,117.38 = 10,971.80/x
  3. Step 3: Cross multiply
    18,927.08x = 26,117.38 × 10,971.80
  4. Step 4: Simplify right side
    18,927.08x = 286,554,669.88
  5. Step 5: Solve for x
    x = 286,554,669.88/18,927.08
  6. Step 6: Final answer
    x = 15,139.93

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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.