Home / 13,905.09-20,862.32-4,545.50

Finding the Fourth Proportional to 13,905.09, 20,862.32 and 4,545.50

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Solution

The fourth proportional to 13,905.09, 20,862.32 and 4,545.50 is: 6,819.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,905.09 : 20,862.32 = 4,545.50 : x
  2. Step 2: Convert to fraction form
    13,905.09/20,862.32 = 4,545.50/x
  3. Step 3: Cross multiply
    13,905.09x = 20,862.32 × 4,545.50
  4. Step 4: Simplify right side
    13,905.09x = 94,829,548.52
  5. Step 5: Solve for x
    x = 94,829,548.52/13,905.09
  6. Step 6: Final answer
    x = 6,819.77

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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.