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Finding the Fourth Proportional to 13,011.47, 17,955.92 and 7,268.93

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Solution

The fourth proportional to 13,011.47, 17,955.92 and 7,268.93 is: 10,031.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,011.47 : 17,955.92 = 7,268.93 : x
  2. Step 2: Convert to fraction form
    13,011.47/17,955.92 = 7,268.93/x
  3. Step 3: Cross multiply
    13,011.47x = 17,955.92 × 7,268.93
  4. Step 4: Simplify right side
    13,011.47x = 130,520,325.57
  5. Step 5: Solve for x
    x = 130,520,325.57/13,011.47
  6. Step 6: Final answer
    x = 10,031.17

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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.