Home / 7,140.77-10,698.85-5,560.05

Finding the Fourth Proportional to 7,140.77, 10,698.85 and 5,560.05

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Solution

The fourth proportional to 7,140.77, 10,698.85 and 5,560.05 is: 8,330.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.77 : 10,698.85 = 5,560.05 : x
  2. Step 2: Convert to fraction form
    7,140.77/10,698.85 = 5,560.05/x
  3. Step 3: Cross multiply
    7,140.77x = 10,698.85 × 5,560.05
  4. Step 4: Simplify right side
    7,140.77x = 59,486,140.42
  5. Step 5: Solve for x
    x = 59,486,140.42/7,140.77
  6. Step 6: Final answer
    x = 8,330.50

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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.