Home / 16,389.50-22,611.80-9,670.54

Finding the Fourth Proportional to 16,389.50, 22,611.80 and 9,670.54

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Solution

The fourth proportional to 16,389.50, 22,611.80 and 9,670.54 is: 13,341.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,389.50 : 22,611.80 = 9,670.54 : x
  2. Step 2: Convert to fraction form
    16,389.50/22,611.80 = 9,670.54/x
  3. Step 3: Cross multiply
    16,389.50x = 22,611.80 × 9,670.54
  4. Step 4: Simplify right side
    16,389.50x = 218,668,316.37
  5. Step 5: Solve for x
    x = 218,668,316.37/16,389.50
  6. Step 6: Final answer
    x = 13,341.98

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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.