Home / 18,566.39-27,784.51-13,307.20

Finding the Fourth Proportional to 18,566.39, 27,784.51 and 13,307.20

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Solution

The fourth proportional to 18,566.39, 27,784.51 and 13,307.20 is: 19,914.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,566.39 : 27,784.51 = 13,307.20 : x
  2. Step 2: Convert to fraction form
    18,566.39/27,784.51 = 13,307.20/x
  3. Step 3: Cross multiply
    18,566.39x = 27,784.51 × 13,307.20
  4. Step 4: Simplify right side
    18,566.39x = 369,734,031.47
  5. Step 5: Solve for x
    x = 369,734,031.47/18,566.39
  6. Step 6: Final answer
    x = 19,914.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.