Home / 13,491.48-18,560.70-10,342.20

Finding the Fourth Proportional to 13,491.48, 18,560.70 and 10,342.20

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Solution

The fourth proportional to 13,491.48, 18,560.70 and 10,342.20 is: 14,228.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,491.48 : 18,560.70 = 10,342.20 : x
  2. Step 2: Convert to fraction form
    13,491.48/18,560.70 = 10,342.20/x
  3. Step 3: Cross multiply
    13,491.48x = 18,560.70 × 10,342.20
  4. Step 4: Simplify right side
    13,491.48x = 191,958,471.54
  5. Step 5: Solve for x
    x = 191,958,471.54/13,491.48
  6. Step 6: Final answer
    x = 14,228.13

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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.