Home / 10,345.43-14,276.53-5,629.70

Finding the Fourth Proportional to 10,345.43, 14,276.53 and 5,629.70

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Solution

The fourth proportional to 10,345.43, 14,276.53 and 5,629.70 is: 7,768.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,345.43 : 14,276.53 = 5,629.70 : x
  2. Step 2: Convert to fraction form
    10,345.43/14,276.53 = 5,629.70/x
  3. Step 3: Cross multiply
    10,345.43x = 14,276.53 × 5,629.70
  4. Step 4: Simplify right side
    10,345.43x = 80,372,580.94
  5. Step 5: Solve for x
    x = 80,372,580.94/10,345.43
  6. Step 6: Final answer
    x = 7,768.90

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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.