Home / 18,566.40-27,784.50-13,307.20

Finding the Fourth Proportional to 18,566.40, 27,784.50 and 13,307.20

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Solution

The fourth proportional to 18,566.40, 27,784.50 and 13,307.20 is: 19,914.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,566.40 : 27,784.50 = 13,307.20 : x
  2. Step 2: Convert to fraction form
    18,566.40/27,784.50 = 13,307.20/x
  3. Step 3: Cross multiply
    18,566.40x = 27,784.50 × 13,307.20
  4. Step 4: Simplify right side
    18,566.40x = 369,733,898.40
  5. Step 5: Solve for x
    x = 369,733,898.40/18,566.40
  6. Step 6: Final answer
    x = 19,914.14

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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.