Home / 15,245.28-21,038.54-8,957.25

Finding the Fourth Proportional to 15,245.28, 21,038.54 and 8,957.25

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Solution

The fourth proportional to 15,245.28, 21,038.54 and 8,957.25 is: 12,361.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,245.28 : 21,038.54 = 8,957.25 : x
  2. Step 2: Convert to fraction form
    15,245.28/21,038.54 = 8,957.25/x
  3. Step 3: Cross multiply
    15,245.28x = 21,038.54 × 8,957.25
  4. Step 4: Simplify right side
    15,245.28x = 188,447,417.63
  5. Step 5: Solve for x
    x = 188,447,417.63/15,245.28
  6. Step 6: Final answer
    x = 12,361.03

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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.