Home / 18,855.49-26,021.28-11,303.05

Finding the Fourth Proportional to 18,855.49, 26,021.28 and 11,303.05

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Solution

The fourth proportional to 18,855.49, 26,021.28 and 11,303.05 is: 15,598.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,855.49 : 26,021.28 = 11,303.05 : x
  2. Step 2: Convert to fraction form
    18,855.49/26,021.28 = 11,303.05/x
  3. Step 3: Cross multiply
    18,855.49x = 26,021.28 × 11,303.05
  4. Step 4: Simplify right side
    18,855.49x = 294,119,828.90
  5. Step 5: Solve for x
    x = 294,119,828.90/18,855.49
  6. Step 6: Final answer
    x = 15,598.63

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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.