Home / 12,734.40-17,569.74-8,258.28

Finding the Fourth Proportional to 12,734.40, 17,569.74 and 8,258.28

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Solution

The fourth proportional to 12,734.40, 17,569.74 and 8,258.28 is: 11,394.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,734.40 : 17,569.74 = 8,258.28 : x
  2. Step 2: Convert to fraction form
    12,734.40/17,569.74 = 8,258.28/x
  3. Step 3: Cross multiply
    12,734.40x = 17,569.74 × 8,258.28
  4. Step 4: Simplify right side
    12,734.40x = 145,095,832.45
  5. Step 5: Solve for x
    x = 145,095,832.45/12,734.40
  6. Step 6: Final answer
    x = 11,394.01

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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.