Home / 7,547.68-10,415.30-4,190.50

Finding the Fourth Proportional to 7,547.68, 10,415.30 and 4,190.50

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Solution

The fourth proportional to 7,547.68, 10,415.30 and 4,190.50 is: 5,782.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,547.68 : 10,415.30 = 4,190.50 : x
  2. Step 2: Convert to fraction form
    7,547.68/10,415.30 = 4,190.50/x
  3. Step 3: Cross multiply
    7,547.68x = 10,415.30 × 4,190.50
  4. Step 4: Simplify right side
    7,547.68x = 43,645,314.65
  5. Step 5: Solve for x
    x = 43,645,314.65/7,547.68
  6. Step 6: Final answer
    x = 5,782.61

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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.