Home / 15,545.37-21,451.93-8,830.98

Finding the Fourth Proportional to 15,545.37, 21,451.93 and 8,830.98

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Solution

The fourth proportional to 15,545.37, 21,451.93 and 8,830.98 is: 12,186.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,545.37 : 21,451.93 = 8,830.98 : x
  2. Step 2: Convert to fraction form
    15,545.37/21,451.93 = 8,830.98/x
  3. Step 3: Cross multiply
    15,545.37x = 21,451.93 × 8,830.98
  4. Step 4: Simplify right side
    15,545.37x = 189,441,564.79
  5. Step 5: Solve for x
    x = 189,441,564.79/15,545.37
  6. Step 6: Final answer
    x = 12,186.37

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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.