Home / 13,545.23-20,312.37-5,225.54

Finding the Fourth Proportional to 13,545.23, 20,312.37 and 5,225.54

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Solution

The fourth proportional to 13,545.23, 20,312.37 and 5,225.54 is: 7,836.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,545.23 : 20,312.37 = 5,225.54 : x
  2. Step 2: Convert to fraction form
    13,545.23/20,312.37 = 5,225.54/x
  3. Step 3: Cross multiply
    13,545.23x = 20,312.37 × 5,225.54
  4. Step 4: Simplify right side
    13,545.23x = 106,143,000.37
  5. Step 5: Solve for x
    x = 106,143,000.37/13,545.23
  6. Step 6: Final answer
    x = 7,836.19

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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.