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Finding the Fourth Proportional to 10,357.40, 15,536.10 and 7,441.40

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Solution

The fourth proportional to 10,357.40, 15,536.10 and 7,441.40 is: 11,162.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,357.40 : 15,536.10 = 7,441.40 : x
  2. Step 2: Convert to fraction form
    10,357.40/15,536.10 = 7,441.40/x
  3. Step 3: Cross multiply
    10,357.40x = 15,536.10 × 7,441.40
  4. Step 4: Simplify right side
    10,357.40x = 115,610,334.54
  5. Step 5: Solve for x
    x = 115,610,334.54/10,357.40
  6. Step 6: Final answer
    x = 11,162.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.