Home / 18,347.07-25,319.06-10,390.03

Finding the Fourth Proportional to 18,347.07, 25,319.06 and 10,390.03

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Solution

The fourth proportional to 18,347.07, 25,319.06 and 10,390.03 is: 14,338.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,347.07 : 25,319.06 = 10,390.03 : x
  2. Step 2: Convert to fraction form
    18,347.07/25,319.06 = 10,390.03/x
  3. Step 3: Cross multiply
    18,347.07x = 25,319.06 × 10,390.03
  4. Step 4: Simplify right side
    18,347.07x = 263,065,792.97
  5. Step 5: Solve for x
    x = 263,065,792.97/18,347.07
  6. Step 6: Final answer
    x = 14,338.30

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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.