Home / 7,259.40-10,878.18-5,401.80

Finding the Fourth Proportional to 7,259.40, 10,878.18 and 5,401.80

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Solution

The fourth proportional to 7,259.40, 10,878.18 and 5,401.80 is: 8,094.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,259.40 : 10,878.18 = 5,401.80 : x
  2. Step 2: Convert to fraction form
    7,259.40/10,878.18 = 5,401.80/x
  3. Step 3: Cross multiply
    7,259.40x = 10,878.18 × 5,401.80
  4. Step 4: Simplify right side
    7,259.40x = 58,761,752.72
  5. Step 5: Solve for x
    x = 58,761,752.72/7,259.40
  6. Step 6: Final answer
    x = 8,094.57

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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.