Home / 15,698.70-23,655.96-12,986.13

Finding the Fourth Proportional to 15,698.70, 23,655.96 and 12,986.13

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Solution

The fourth proportional to 15,698.70, 23,655.96 and 12,986.13 is: 19,568.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,698.70 : 23,655.96 = 12,986.13 : x
  2. Step 2: Convert to fraction form
    15,698.70/23,655.96 = 12,986.13/x
  3. Step 3: Cross multiply
    15,698.70x = 23,655.96 × 12,986.13
  4. Step 4: Simplify right side
    15,698.70x = 307,199,371.83
  5. Step 5: Solve for x
    x = 307,199,371.83/15,698.70
  6. Step 6: Final answer
    x = 19,568.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.