Home / 7,639.31-11,459.07-5,560.45

Finding the Fourth Proportional to 7,639.31, 11,459.07 and 5,560.45

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Solution

The fourth proportional to 7,639.31, 11,459.07 and 5,560.45 is: 8,340.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.31 : 11,459.07 = 5,560.45 : x
  2. Step 2: Convert to fraction form
    7,639.31/11,459.07 = 5,560.45/x
  3. Step 3: Cross multiply
    7,639.31x = 11,459.07 × 5,560.45
  4. Step 4: Simplify right side
    7,639.31x = 63,717,557.13
  5. Step 5: Solve for x
    x = 63,717,557.13/7,639.31
  6. Step 6: Final answer
    x = 8,340.74

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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.