Home / 18,238.95-27,348.93-12,315.60

Finding the Fourth Proportional to 18,238.95, 27,348.93 and 12,315.60

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Solution

The fourth proportional to 18,238.95, 27,348.93 and 12,315.60 is: 18,466.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,238.95 : 27,348.93 = 12,315.60 : x
  2. Step 2: Convert to fraction form
    18,238.95/27,348.93 = 12,315.60/x
  3. Step 3: Cross multiply
    18,238.95x = 27,348.93 × 12,315.60
  4. Step 4: Simplify right side
    18,238.95x = 336,818,482.31
  5. Step 5: Solve for x
    x = 336,818,482.31/18,238.95
  6. Step 6: Final answer
    x = 18,466.99

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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.