Home / 14,110.47-19,472.81-7,977.68

Finding the Fourth Proportional to 14,110.47, 19,472.81 and 7,977.68

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Solution

The fourth proportional to 14,110.47, 19,472.81 and 7,977.68 is: 11,009.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,110.47 : 19,472.81 = 7,977.68 : x
  2. Step 2: Convert to fraction form
    14,110.47/19,472.81 = 7,977.68/x
  3. Step 3: Cross multiply
    14,110.47x = 19,472.81 × 7,977.68
  4. Step 4: Simplify right side
    14,110.47x = 155,347,846.88
  5. Step 5: Solve for x
    x = 155,347,846.88/14,110.47
  6. Step 6: Final answer
    x = 11,009.41

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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.