Home / 13,271.81-18,315.54-7,303.73

Finding the Fourth Proportional to 13,271.81, 18,315.54 and 7,303.73

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Solution

The fourth proportional to 13,271.81, 18,315.54 and 7,303.73 is: 10,079.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,271.81 : 18,315.54 = 7,303.73 : x
  2. Step 2: Convert to fraction form
    13,271.81/18,315.54 = 7,303.73/x
  3. Step 3: Cross multiply
    13,271.81x = 18,315.54 × 7,303.73
  4. Step 4: Simplify right side
    13,271.81x = 133,771,667.39
  5. Step 5: Solve for x
    x = 133,771,667.39/13,271.81
  6. Step 6: Final answer
    x = 10,079.39

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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.