Home / 15,813.47-23,720.34-4,720.25

Finding the Fourth Proportional to 15,813.47, 23,720.34 and 4,720.25

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Solution

The fourth proportional to 15,813.47, 23,720.34 and 4,720.25 is: 7,080.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,813.47 : 23,720.34 = 4,720.25 : x
  2. Step 2: Convert to fraction form
    15,813.47/23,720.34 = 4,720.25/x
  3. Step 3: Cross multiply
    15,813.47x = 23,720.34 × 4,720.25
  4. Step 4: Simplify right side
    15,813.47x = 111,965,934.89
  5. Step 5: Solve for x
    x = 111,965,934.89/15,813.47
  6. Step 6: Final answer
    x = 7,080.42

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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.