Home / 6,555.12-9,820.53-5,087.40

Finding the Fourth Proportional to 6,555.12, 9,820.53 and 5,087.40

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Solution

The fourth proportional to 6,555.12, 9,820.53 and 5,087.40 is: 7,621.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,555.12 : 9,820.53 = 5,087.40 : x
  2. Step 2: Convert to fraction form
    6,555.12/9,820.53 = 5,087.40/x
  3. Step 3: Cross multiply
    6,555.12x = 9,820.53 × 5,087.40
  4. Step 4: Simplify right side
    6,555.12x = 49,960,964.32
  5. Step 5: Solve for x
    x = 49,960,964.32/6,555.12
  6. Step 6: Final answer
    x = 7,621.67

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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.