Home / 13,038.41-19,510.89-11,289.45

Finding the Fourth Proportional to 13,038.41, 19,510.89 and 11,289.45

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Solution

The fourth proportional to 13,038.41, 19,510.89 and 11,289.45 is: 16,893.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,038.41 : 19,510.89 = 11,289.45 : x
  2. Step 2: Convert to fraction form
    13,038.41/19,510.89 = 11,289.45/x
  3. Step 3: Cross multiply
    13,038.41x = 19,510.89 × 11,289.45
  4. Step 4: Simplify right side
    13,038.41x = 220,267,217.11
  5. Step 5: Solve for x
    x = 220,267,217.11/13,038.41
  6. Step 6: Final answer
    x = 16,893.72

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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.