Home / 19,809.36-27,333.45-11,307.60

Finding the Fourth Proportional to 19,809.36, 27,333.45 and 11,307.60

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Solution

The fourth proportional to 19,809.36, 27,333.45 and 11,307.60 is: 15,602.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,809.36 : 27,333.45 = 11,307.60 : x
  2. Step 2: Convert to fraction form
    19,809.36/27,333.45 = 11,307.60/x
  3. Step 3: Cross multiply
    19,809.36x = 27,333.45 × 11,307.60
  4. Step 4: Simplify right side
    19,809.36x = 309,075,719.22
  5. Step 5: Solve for x
    x = 309,075,719.22/19,809.36
  6. Step 6: Final answer
    x = 15,602.51

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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.