Home / 10,455.04-15,681.84-4,900.60

Finding the Fourth Proportional to 10,455.04, 15,681.84 and 4,900.60

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Solution

The fourth proportional to 10,455.04, 15,681.84 and 4,900.60 is: 7,350.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,455.04 : 15,681.84 = 4,900.60 : x
  2. Step 2: Convert to fraction form
    10,455.04/15,681.84 = 4,900.60/x
  3. Step 3: Cross multiply
    10,455.04x = 15,681.84 × 4,900.60
  4. Step 4: Simplify right side
    10,455.04x = 76,850,425.10
  5. Step 5: Solve for x
    x = 76,850,425.10/10,455.04
  6. Step 6: Final answer
    x = 7,350.56

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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.