Home / 14,266.90-19,688.32-7,979.28

Finding the Fourth Proportional to 14,266.90, 19,688.32 and 7,979.28

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Solution

The fourth proportional to 14,266.90, 19,688.32 and 7,979.28 is: 11,011.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,266.90 : 19,688.32 = 7,979.28 : x
  2. Step 2: Convert to fraction form
    14,266.90/19,688.32 = 7,979.28/x
  3. Step 3: Cross multiply
    14,266.90x = 19,688.32 × 7,979.28
  4. Step 4: Simplify right side
    14,266.90x = 157,098,618.01
  5. Step 5: Solve for x
    x = 157,098,618.01/14,266.90
  6. Step 6: Final answer
    x = 11,011.41

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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.