Home / 14,278.14-19,703.16-7,904.28

Finding the Fourth Proportional to 14,278.14, 19,703.16 and 7,904.28

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Solution

The fourth proportional to 14,278.14, 19,703.16 and 7,904.28 is: 10,907.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,278.14 : 19,703.16 = 7,904.28 : x
  2. Step 2: Convert to fraction form
    14,278.14/19,703.16 = 7,904.28/x
  3. Step 3: Cross multiply
    14,278.14x = 19,703.16 × 7,904.28
  4. Step 4: Simplify right side
    14,278.14x = 155,739,293.52
  5. Step 5: Solve for x
    x = 155,739,293.52/14,278.14
  6. Step 6: Final answer
    x = 10,907.53

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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.