Home / 13,888.18-19,174.63-12,393.52

Finding the Fourth Proportional to 13,888.18, 19,174.63 and 12,393.52

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Solution

The fourth proportional to 13,888.18, 19,174.63 and 12,393.52 is: 17,111.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,888.18 : 19,174.63 = 12,393.52 : x
  2. Step 2: Convert to fraction form
    13,888.18/19,174.63 = 12,393.52/x
  3. Step 3: Cross multiply
    13,888.18x = 19,174.63 × 12,393.52
  4. Step 4: Simplify right side
    13,888.18x = 237,641,160.40
  5. Step 5: Solve for x
    x = 237,641,160.40/13,888.18
  6. Step 6: Final answer
    x = 17,111.04

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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.