Home / 10,245.13-14,137.39-7,557.81

Finding the Fourth Proportional to 10,245.13, 14,137.39 and 7,557.81

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Solution

The fourth proportional to 10,245.13, 14,137.39 and 7,557.81 is: 10,429.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,245.13 : 14,137.39 = 7,557.81 : x
  2. Step 2: Convert to fraction form
    10,245.13/14,137.39 = 7,557.81/x
  3. Step 3: Cross multiply
    10,245.13x = 14,137.39 × 7,557.81
  4. Step 4: Simplify right side
    10,245.13x = 106,847,707.52
  5. Step 5: Solve for x
    x = 106,847,707.52/10,245.13
  6. Step 6: Final answer
    x = 10,429.12

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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.