Home / 14,267.31-19,688.76-7,979.68

Finding the Fourth Proportional to 14,267.31, 19,688.76 and 7,979.68

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Solution

The fourth proportional to 14,267.31, 19,688.76 and 7,979.68 is: 11,011.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,267.31 : 19,688.76 = 7,979.68 : x
  2. Step 2: Convert to fraction form
    14,267.31/19,688.76 = 7,979.68/x
  3. Step 3: Cross multiply
    14,267.31x = 19,688.76 × 7,979.68
  4. Step 4: Simplify right side
    14,267.31x = 157,110,004.40
  5. Step 5: Solve for x
    x = 157,110,004.40/14,267.31
  6. Step 6: Final answer
    x = 11,011.89

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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.