Home / 13,011.44-17,953.08-7,421.36

Finding the Fourth Proportional to 13,011.44, 17,953.08 and 7,421.36

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Solution

The fourth proportional to 13,011.44, 17,953.08 and 7,421.36 is: 10,239.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,011.44 : 17,953.08 = 7,421.36 : x
  2. Step 2: Convert to fraction form
    13,011.44/17,953.08 = 7,421.36/x
  3. Step 3: Cross multiply
    13,011.44x = 17,953.08 × 7,421.36
  4. Step 4: Simplify right side
    13,011.44x = 133,236,269.79
  5. Step 5: Solve for x
    x = 133,236,269.79/13,011.44
  6. Step 6: Final answer
    x = 10,239.93

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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.