Home / 10,318.94-15,477.68-4,776.72

Finding the Fourth Proportional to 10,318.94, 15,477.68 and 4,776.72

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Solution

The fourth proportional to 10,318.94, 15,477.68 and 4,776.72 is: 7,164.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,318.94 : 15,477.68 = 4,776.72 : x
  2. Step 2: Convert to fraction form
    10,318.94/15,477.68 = 4,776.72/x
  3. Step 3: Cross multiply
    10,318.94x = 15,477.68 × 4,776.72
  4. Step 4: Simplify right side
    10,318.94x = 73,932,543.61
  5. Step 5: Solve for x
    x = 73,932,543.61/10,318.94
  6. Step 6: Final answer
    x = 7,164.74

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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.