Home / 18,359.90-25,328.40-11,283.74

Finding the Fourth Proportional to 18,359.90, 25,328.40 and 11,283.74

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Solution

The fourth proportional to 18,359.90, 25,328.40 and 11,283.74 is: 15,566.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,359.90 : 25,328.40 = 11,283.74 : x
  2. Step 2: Convert to fraction form
    18,359.90/25,328.40 = 11,283.74/x
  3. Step 3: Cross multiply
    18,359.90x = 25,328.40 × 11,283.74
  4. Step 4: Simplify right side
    18,359.90x = 285,799,080.22
  5. Step 5: Solve for x
    x = 285,799,080.22/18,359.90
  6. Step 6: Final answer
    x = 15,566.48

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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.