Home / 10,011.45-14,989.49-7,538.77

Finding the Fourth Proportional to 10,011.45, 14,989.49 and 7,538.77

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Solution

The fourth proportional to 10,011.45, 14,989.49 and 7,538.77 is: 11,287.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,011.45 : 14,989.49 = 7,538.77 : x
  2. Step 2: Convert to fraction form
    10,011.45/14,989.49 = 7,538.77/x
  3. Step 3: Cross multiply
    10,011.45x = 14,989.49 × 7,538.77
  4. Step 4: Simplify right side
    10,011.45x = 113,002,358.64
  5. Step 5: Solve for x
    x = 113,002,358.64/10,011.45
  6. Step 6: Final answer
    x = 11,287.31

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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.