Home / 13,045.78-19,535.46-11,315.08

Finding the Fourth Proportional to 13,045.78, 19,535.46 and 11,315.08

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Solution

The fourth proportional to 13,045.78, 19,535.46 and 11,315.08 is: 16,943.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,045.78 : 19,535.46 = 11,315.08 : x
  2. Step 2: Convert to fraction form
    13,045.78/19,535.46 = 11,315.08/x
  3. Step 3: Cross multiply
    13,045.78x = 19,535.46 × 11,315.08
  4. Step 4: Simplify right side
    13,045.78x = 221,045,292.74
  5. Step 5: Solve for x
    x = 221,045,292.74/13,045.78
  6. Step 6: Final answer
    x = 16,943.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.