Home / 15,720.47-23,573.41-9,148.54

Finding the Fourth Proportional to 15,720.47, 23,573.41 and 9,148.54

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Solution

The fourth proportional to 15,720.47, 23,573.41 and 9,148.54 is: 13,718.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,720.47 : 23,573.41 = 9,148.54 : x
  2. Step 2: Convert to fraction form
    15,720.47/23,573.41 = 9,148.54/x
  3. Step 3: Cross multiply
    15,720.47x = 23,573.41 × 9,148.54
  4. Step 4: Simplify right side
    15,720.47x = 215,662,284.32
  5. Step 5: Solve for x
    x = 215,662,284.32/15,720.47
  6. Step 6: Final answer
    x = 13,718.56

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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.