Home / 19,438.95-26,827.70-11,888.67

Finding the Fourth Proportional to 19,438.95, 26,827.70 and 11,888.67

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Solution

The fourth proportional to 19,438.95, 26,827.70 and 11,888.67 is: 16,407.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,438.95 : 26,827.70 = 11,888.67 : x
  2. Step 2: Convert to fraction form
    19,438.95/26,827.70 = 11,888.67/x
  3. Step 3: Cross multiply
    19,438.95x = 26,827.70 × 11,888.67
  4. Step 4: Simplify right side
    19,438.95x = 318,945,612.72
  5. Step 5: Solve for x
    x = 318,945,612.72/19,438.95
  6. Step 6: Final answer
    x = 16,407.55

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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.