Home / 10,173.28-14,043.40-7,378.24

Finding the Fourth Proportional to 10,173.28, 14,043.40 and 7,378.24

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Solution

The fourth proportional to 10,173.28, 14,043.40 and 7,378.24 is: 10,185.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,173.28 : 14,043.40 = 7,378.24 : x
  2. Step 2: Convert to fraction form
    10,173.28/14,043.40 = 7,378.24/x
  3. Step 3: Cross multiply
    10,173.28x = 14,043.40 × 7,378.24
  4. Step 4: Simplify right side
    10,173.28x = 103,615,575.62
  5. Step 5: Solve for x
    x = 103,615,575.62/10,173.28
  6. Step 6: Final answer
    x = 10,185.07

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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.