Home / 13,010.07-19,515.02-3,149.40

Finding the Fourth Proportional to 13,010.07, 19,515.02 and 3,149.40

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Solution

The fourth proportional to 13,010.07, 19,515.02 and 3,149.40 is: 4,724.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,010.07 : 19,515.02 = 3,149.40 : x
  2. Step 2: Convert to fraction form
    13,010.07/19,515.02 = 3,149.40/x
  3. Step 3: Cross multiply
    13,010.07x = 19,515.02 × 3,149.40
  4. Step 4: Simplify right side
    13,010.07x = 61,460,588.24
  5. Step 5: Solve for x
    x = 61,460,588.24/13,010.07
  6. Step 6: Final answer
    x = 4,724.08

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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.