Home / 9,068.32-12,512.80-5,705.28

Finding the Fourth Proportional to 9,068.32, 12,512.80 and 5,705.28

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Solution

The fourth proportional to 9,068.32, 12,512.80 and 5,705.28 is: 7,872.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,068.32 : 12,512.80 = 5,705.28 : x
  2. Step 2: Convert to fraction form
    9,068.32/12,512.80 = 5,705.28/x
  3. Step 3: Cross multiply
    9,068.32x = 12,512.80 × 5,705.28
  4. Step 4: Simplify right side
    9,068.32x = 71,389,027.58
  5. Step 5: Solve for x
    x = 71,389,027.58/9,068.32
  6. Step 6: Final answer
    x = 7,872.35

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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.