Home / 13,052.47-18,012.12-7,386.46

Finding the Fourth Proportional to 13,052.47, 18,012.12 and 7,386.46

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Solution

The fourth proportional to 13,052.47, 18,012.12 and 7,386.46 is: 10,193.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,052.47 : 18,012.12 = 7,386.46 : x
  2. Step 2: Convert to fraction form
    13,052.47/18,012.12 = 7,386.46/x
  3. Step 3: Cross multiply
    13,052.47x = 18,012.12 × 7,386.46
  4. Step 4: Simplify right side
    13,052.47x = 133,045,803.90
  5. Step 5: Solve for x
    x = 133,045,803.90/13,052.47
  6. Step 6: Final answer
    x = 10,193.15

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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.