Home / 13,111.02-19,565.85-11,709.72

Finding the Fourth Proportional to 13,111.02, 19,565.85 and 11,709.72

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Solution

The fourth proportional to 13,111.02, 19,565.85 and 11,709.72 is: 17,474.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,111.02 : 19,565.85 = 11,709.72 : x
  2. Step 2: Convert to fraction form
    13,111.02/19,565.85 = 11,709.72/x
  3. Step 3: Cross multiply
    13,111.02x = 19,565.85 × 11,709.72
  4. Step 4: Simplify right side
    13,111.02x = 229,110,625.06
  5. Step 5: Solve for x
    x = 229,110,625.06/13,111.02
  6. Step 6: Final answer
    x = 17,474.66

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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.