Home / 15,647.80-23,529.30-13,113.40

Finding the Fourth Proportional to 15,647.80, 23,529.30 and 13,113.40

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Solution

The fourth proportional to 15,647.80, 23,529.30 and 13,113.40 is: 19,718.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,647.80 : 23,529.30 = 13,113.40 : x
  2. Step 2: Convert to fraction form
    15,647.80/23,529.30 = 13,113.40/x
  3. Step 3: Cross multiply
    15,647.80x = 23,529.30 × 13,113.40
  4. Step 4: Simplify right side
    15,647.80x = 308,549,122.62
  5. Step 5: Solve for x
    x = 308,549,122.62/15,647.80
  6. Step 6: Final answer
    x = 19,718.37

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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.