Home / 18,740.26-25,862.69-10,782.32

Finding the Fourth Proportional to 18,740.26, 25,862.69 and 10,782.32

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Solution

The fourth proportional to 18,740.26, 25,862.69 and 10,782.32 is: 14,880.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,740.26 : 25,862.69 = 10,782.32 : x
  2. Step 2: Convert to fraction form
    18,740.26/25,862.69 = 10,782.32/x
  3. Step 3: Cross multiply
    18,740.26x = 25,862.69 × 10,782.32
  4. Step 4: Simplify right side
    18,740.26x = 278,859,697.28
  5. Step 5: Solve for x
    x = 278,859,697.28/18,740.26
  6. Step 6: Final answer
    x = 14,880.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.