Home / 13,522.77-20,186.48-12,916.19

Finding the Fourth Proportional to 13,522.77, 20,186.48 and 12,916.19

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Solution

The fourth proportional to 13,522.77, 20,186.48 and 12,916.19 is: 19,280.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,522.77 : 20,186.48 = 12,916.19 : x
  2. Step 2: Convert to fraction form
    13,522.77/20,186.48 = 12,916.19/x
  3. Step 3: Cross multiply
    13,522.77x = 20,186.48 × 12,916.19
  4. Step 4: Simplify right side
    13,522.77x = 260,732,245.60
  5. Step 5: Solve for x
    x = 260,732,245.60/13,522.77
  6. Step 6: Final answer
    x = 19,280.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.