Home / 14,103.79-19,458.02-8,438.67

Finding the Fourth Proportional to 14,103.79, 19,458.02 and 8,438.67

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Solution

The fourth proportional to 14,103.79, 19,458.02 and 8,438.67 is: 11,642.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,103.79 : 19,458.02 = 8,438.67 : x
  2. Step 2: Convert to fraction form
    14,103.79/19,458.02 = 8,438.67/x
  3. Step 3: Cross multiply
    14,103.79x = 19,458.02 × 8,438.67
  4. Step 4: Simplify right side
    14,103.79x = 164,199,830.73
  5. Step 5: Solve for x
    x = 164,199,830.73/14,103.79
  6. Step 6: Final answer
    x = 11,642.25

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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.