Home / 13,803.67-18,916.36-12,475.07

Finding the Fourth Proportional to 13,803.67, 18,916.36 and 12,475.07

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Solution

The fourth proportional to 13,803.67, 18,916.36 and 12,475.07 is: 17,095.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,803.67 : 18,916.36 = 12,475.07 : x
  2. Step 2: Convert to fraction form
    13,803.67/18,916.36 = 12,475.07/x
  3. Step 3: Cross multiply
    13,803.67x = 18,916.36 × 12,475.07
  4. Step 4: Simplify right side
    13,803.67x = 235,982,915.15
  5. Step 5: Solve for x
    x = 235,982,915.15/13,803.67
  6. Step 6: Final answer
    x = 17,095.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.