Home / 13,132-18,122.40-7,544.32

Finding the Fourth Proportional to 13,132, 18,122.40 and 7,544.32

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Solution

The fourth proportional to 13,132, 18,122.40 and 7,544.32 is: 10,411.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,132 : 18,122.40 = 7,544.32 : x
  2. Step 2: Convert to fraction form
    13,132/18,122.40 = 7,544.32/x
  3. Step 3: Cross multiply
    13,132x = 18,122.40 × 7,544.32
  4. Step 4: Simplify right side
    13,132x = 136,721,184.77
  5. Step 5: Solve for x
    x = 136,721,184.77/13,132
  6. Step 6: Final answer
    x = 10,411.30

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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.