Home / 10,628.18-15,923.80-7,458.90

Finding the Fourth Proportional to 10,628.18, 15,923.80 and 7,458.90

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Solution

The fourth proportional to 10,628.18, 15,923.80 and 7,458.90 is: 11,175.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,628.18 : 15,923.80 = 7,458.90 : x
  2. Step 2: Convert to fraction form
    10,628.18/15,923.80 = 7,458.90/x
  3. Step 3: Cross multiply
    10,628.18x = 15,923.80 × 7,458.90
  4. Step 4: Simplify right side
    10,628.18x = 118,774,031.82
  5. Step 5: Solve for x
    x = 118,774,031.82/10,628.18
  6. Step 6: Final answer
    x = 11,175.39

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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.