Home / 19,803.99-27,331.47-11,307.39

Finding the Fourth Proportional to 19,803.99, 27,331.47 and 11,307.39

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Solution

The fourth proportional to 19,803.99, 27,331.47 and 11,307.39 is: 15,605.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,803.99 : 27,331.47 = 11,307.39 : x
  2. Step 2: Convert to fraction form
    19,803.99/27,331.47 = 11,307.39/x
  3. Step 3: Cross multiply
    19,803.99x = 27,331.47 × 11,307.39
  4. Step 4: Simplify right side
    19,803.99x = 309,047,590.56
  5. Step 5: Solve for x
    x = 309,047,590.56/19,803.99
  6. Step 6: Final answer
    x = 15,605.32

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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.