Home / 13,259.40-18,299.44-7,955.52

Finding the Fourth Proportional to 13,259.40, 18,299.44 and 7,955.52

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Solution

The fourth proportional to 13,259.40, 18,299.44 and 7,955.52 is: 10,979.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,259.40 : 18,299.44 = 7,955.52 : x
  2. Step 2: Convert to fraction form
    13,259.40/18,299.44 = 7,955.52/x
  3. Step 3: Cross multiply
    13,259.40x = 18,299.44 × 7,955.52
  4. Step 4: Simplify right side
    13,259.40x = 145,581,560.91
  5. Step 5: Solve for x
    x = 145,581,560.91/13,259.40
  6. Step 6: Final answer
    x = 10,979.50

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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.