Home / 15,512.21-21,406.63-9,461.05

Finding the Fourth Proportional to 15,512.21, 21,406.63 and 9,461.05

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Solution

The fourth proportional to 15,512.21, 21,406.63 and 9,461.05 is: 13,056.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,512.21 : 21,406.63 = 9,461.05 : x
  2. Step 2: Convert to fraction form
    15,512.21/21,406.63 = 9,461.05/x
  3. Step 3: Cross multiply
    15,512.21x = 21,406.63 × 9,461.05
  4. Step 4: Simplify right side
    15,512.21x = 202,529,257.74
  5. Step 5: Solve for x
    x = 202,529,257.74/15,512.21
  6. Step 6: Final answer
    x = 13,056.12

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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.