Home / 18,386.60-27,566.40-7,287.80

Finding the Fourth Proportional to 18,386.60, 27,566.40 and 7,287.80

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Solution

The fourth proportional to 18,386.60, 27,566.40 and 7,287.80 is: 10,926.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,386.60 : 27,566.40 = 7,287.80 : x
  2. Step 2: Convert to fraction form
    18,386.60/27,566.40 = 7,287.80/x
  3. Step 3: Cross multiply
    18,386.60x = 27,566.40 × 7,287.80
  4. Step 4: Simplify right side
    18,386.60x = 200,898,409.92
  5. Step 5: Solve for x
    x = 200,898,409.92/18,386.60
  6. Step 6: Final answer
    x = 10,926.35

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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.