Home / 13,599.36-18,767.43-7,631.47

Finding the Fourth Proportional to 13,599.36, 18,767.43 and 7,631.47

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Solution

The fourth proportional to 13,599.36, 18,767.43 and 7,631.47 is: 10,531.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,599.36 : 18,767.43 = 7,631.47 : x
  2. Step 2: Convert to fraction form
    13,599.36/18,767.43 = 7,631.47/x
  3. Step 3: Cross multiply
    13,599.36x = 18,767.43 × 7,631.47
  4. Step 4: Simplify right side
    13,599.36x = 143,223,079.02
  5. Step 5: Solve for x
    x = 143,223,079.02/13,599.36
  6. Step 6: Final answer
    x = 10,531.60

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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.