Home / 10,628.45-15,920.79-6,235.31

Finding the Fourth Proportional to 10,628.45, 15,920.79 and 6,235.31

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Solution

The fourth proportional to 10,628.45, 15,920.79 and 6,235.31 is: 9,340.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,628.45 : 15,920.79 = 6,235.31 : x
  2. Step 2: Convert to fraction form
    10,628.45/15,920.79 = 6,235.31/x
  3. Step 3: Cross multiply
    10,628.45x = 15,920.79 × 6,235.31
  4. Step 4: Simplify right side
    10,628.45x = 99,271,077.51
  5. Step 5: Solve for x
    x = 99,271,077.51/10,628.45
  6. Step 6: Final answer
    x = 9,340.13

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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.