Home / 10,390.54-14,339.24-5,675.12

Finding the Fourth Proportional to 10,390.54, 14,339.24 and 5,675.12

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Solution

The fourth proportional to 10,390.54, 14,339.24 and 5,675.12 is: 7,831.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,390.54 : 14,339.24 = 5,675.12 : x
  2. Step 2: Convert to fraction form
    10,390.54/14,339.24 = 5,675.12/x
  3. Step 3: Cross multiply
    10,390.54x = 14,339.24 × 5,675.12
  4. Step 4: Simplify right side
    10,390.54x = 81,376,907.71
  5. Step 5: Solve for x
    x = 81,376,907.71/10,390.54
  6. Step 6: Final answer
    x = 7,831.83

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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.