Home / 7,924.84-11,870.40-6,437.07

Finding the Fourth Proportional to 7,924.84, 11,870.40 and 6,437.07

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Solution

The fourth proportional to 7,924.84, 11,870.40 and 6,437.07 is: 9,641.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,924.84 : 11,870.40 = 6,437.07 : x
  2. Step 2: Convert to fraction form
    7,924.84/11,870.40 = 6,437.07/x
  3. Step 3: Cross multiply
    7,924.84x = 11,870.40 × 6,437.07
  4. Step 4: Simplify right side
    7,924.84x = 76,410,609.40
  5. Step 5: Solve for x
    x = 76,410,609.40/7,924.84
  6. Step 6: Final answer
    x = 9,641.91

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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.