Home / 7,631.55-10,528.47-4,977.99

Finding the Fourth Proportional to 7,631.55, 10,528.47 and 4,977.99

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Solution

The fourth proportional to 7,631.55, 10,528.47 and 4,977.99 is: 6,867.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,631.55 : 10,528.47 = 4,977.99 : x
  2. Step 2: Convert to fraction form
    7,631.55/10,528.47 = 4,977.99/x
  3. Step 3: Cross multiply
    7,631.55x = 10,528.47 × 4,977.99
  4. Step 4: Simplify right side
    7,631.55x = 52,410,618.38
  5. Step 5: Solve for x
    x = 52,410,618.38/7,631.55
  6. Step 6: Final answer
    x = 6,867.62

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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.