Home / 10,678.20-14,735.85-5,898.45

Finding the Fourth Proportional to 10,678.20, 14,735.85 and 5,898.45

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Solution

The fourth proportional to 10,678.20, 14,735.85 and 5,898.45 is: 8,139.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,678.20 : 14,735.85 = 5,898.45 : x
  2. Step 2: Convert to fraction form
    10,678.20/14,735.85 = 5,898.45/x
  3. Step 3: Cross multiply
    10,678.20x = 14,735.85 × 5,898.45
  4. Step 4: Simplify right side
    10,678.20x = 86,918,674.43
  5. Step 5: Solve for x
    x = 86,918,674.43/10,678.20
  6. Step 6: Final answer
    x = 8,139.82

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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.