Home / 7,639.81-11,463.10-4,865.76

Finding the Fourth Proportional to 7,639.81, 11,463.10 and 4,865.76

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Solution

The fourth proportional to 7,639.81, 11,463.10 and 4,865.76 is: 7,300.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.81 : 11,463.10 = 4,865.76 : x
  2. Step 2: Convert to fraction form
    7,639.81/11,463.10 = 4,865.76/x
  3. Step 3: Cross multiply
    7,639.81x = 11,463.10 × 4,865.76
  4. Step 4: Simplify right side
    7,639.81x = 55,776,693.46
  5. Step 5: Solve for x
    x = 55,776,693.46/7,639.81
  6. Step 6: Final answer
    x = 7,300.80

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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.