Home / 15,624.36-21,561.60-8,817.93

Finding the Fourth Proportional to 15,624.36, 21,561.60 and 8,817.93

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Solution

The fourth proportional to 15,624.36, 21,561.60 and 8,817.93 is: 12,168.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,624.36 : 21,561.60 = 8,817.93 : x
  2. Step 2: Convert to fraction form
    15,624.36/21,561.60 = 8,817.93/x
  3. Step 3: Cross multiply
    15,624.36x = 21,561.60 × 8,817.93
  4. Step 4: Simplify right side
    15,624.36x = 190,128,679.49
  5. Step 5: Solve for x
    x = 190,128,679.49/15,624.36
  6. Step 6: Final answer
    x = 12,168.73

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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.