Home / 14,277.78-19,703.36-7,904.81

Finding the Fourth Proportional to 14,277.78, 19,703.36 and 7,904.81

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Solution

The fourth proportional to 14,277.78, 19,703.36 and 7,904.81 is: 10,908.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,277.78 : 19,703.36 = 7,904.81 : x
  2. Step 2: Convert to fraction form
    14,277.78/19,703.36 = 7,904.81/x
  3. Step 3: Cross multiply
    14,277.78x = 19,703.36 × 7,904.81
  4. Step 4: Simplify right side
    14,277.78x = 155,751,386.18
  5. Step 5: Solve for x
    x = 155,751,386.18/14,277.78
  6. Step 6: Final answer
    x = 10,908.66

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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.