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Finding the Fourth Proportional to 15,477.51, 23,205.95 and 5,615.51

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Solution

The fourth proportional to 15,477.51, 23,205.95 and 5,615.51 is: 8,419.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,477.51 : 23,205.95 = 5,615.51 : x
  2. Step 2: Convert to fraction form
    15,477.51/23,205.95 = 5,615.51/x
  3. Step 3: Cross multiply
    15,477.51x = 23,205.95 × 5,615.51
  4. Step 4: Simplify right side
    15,477.51x = 130,313,100.18
  5. Step 5: Solve for x
    x = 130,313,100.18/15,477.51
  6. Step 6: Final answer
    x = 8,419.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.