Home / 10,680.56-14,718.36-7,690.75

Finding the Fourth Proportional to 10,680.56, 14,718.36 and 7,690.75

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Solution

The fourth proportional to 10,680.56, 14,718.36 and 7,690.75 is: 10,598.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,680.56 : 14,718.36 = 7,690.75 : x
  2. Step 2: Convert to fraction form
    10,680.56/14,718.36 = 7,690.75/x
  3. Step 3: Cross multiply
    10,680.56x = 14,718.36 × 7,690.75
  4. Step 4: Simplify right side
    10,680.56x = 113,195,175.95
  5. Step 5: Solve for x
    x = 113,195,175.95/10,680.56
  6. Step 6: Final answer
    x = 10,598.24

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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.