Home / 15,512.51-21,407.43-9,223.67

Finding the Fourth Proportional to 15,512.51, 21,407.43 and 9,223.67

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Solution

The fourth proportional to 15,512.51, 21,407.43 and 9,223.67 is: 12,728.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,512.51 : 21,407.43 = 9,223.67 : x
  2. Step 2: Convert to fraction form
    15,512.51/21,407.43 = 9,223.67/x
  3. Step 3: Cross multiply
    15,512.51x = 21,407.43 × 9,223.67
  4. Step 4: Simplify right side
    15,512.51x = 197,455,069.87
  5. Step 5: Solve for x
    x = 197,455,069.87/15,512.51
  6. Step 6: Final answer
    x = 12,728.76

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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.