Home / 15,750.24-21,738.47-9,040.40

Finding the Fourth Proportional to 15,750.24, 21,738.47 and 9,040.40

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Solution

The fourth proportional to 15,750.24, 21,738.47 and 9,040.40 is: 12,477.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,750.24 : 21,738.47 = 9,040.40 : x
  2. Step 2: Convert to fraction form
    15,750.24/21,738.47 = 9,040.40/x
  3. Step 3: Cross multiply
    15,750.24x = 21,738.47 × 9,040.40
  4. Step 4: Simplify right side
    15,750.24x = 196,524,464.19
  5. Step 5: Solve for x
    x = 196,524,464.19/15,750.24
  6. Step 6: Final answer
    x = 12,477.55

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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.