Home / 14,266.56-19,688.76-7,979.40

Finding the Fourth Proportional to 14,266.56, 19,688.76 and 7,979.40

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Solution

The fourth proportional to 14,266.56, 19,688.76 and 7,979.40 is: 11,012.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,266.56 : 19,688.76 = 7,979.40 : x
  2. Step 2: Convert to fraction form
    14,266.56/19,688.76 = 7,979.40/x
  3. Step 3: Cross multiply
    14,266.56x = 19,688.76 × 7,979.40
  4. Step 4: Simplify right side
    14,266.56x = 157,104,491.54
  5. Step 5: Solve for x
    x = 157,104,491.54/14,266.56
  6. Step 6: Final answer
    x = 11,012.08

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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.