Home / 13,912.02-19,207.53-12,417.39

Finding the Fourth Proportional to 13,912.02, 19,207.53 and 12,417.39

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Solution

The fourth proportional to 13,912.02, 19,207.53 and 12,417.39 is: 17,143.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,912.02 : 19,207.53 = 12,417.39 : x
  2. Step 2: Convert to fraction form
    13,912.02/19,207.53 = 12,417.39/x
  3. Step 3: Cross multiply
    13,912.02x = 19,207.53 × 12,417.39
  4. Step 4: Simplify right side
    13,912.02x = 238,507,390.95
  5. Step 5: Solve for x
    x = 238,507,390.95/13,912.02
  6. Step 6: Final answer
    x = 17,143.98

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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.