Home / 14,153.13-19,531.13-7,865.37

Finding the Fourth Proportional to 14,153.13, 19,531.13 and 7,865.37

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Solution

The fourth proportional to 14,153.13, 19,531.13 and 7,865.37 is: 10,854.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,153.13 : 19,531.13 = 7,865.37 : x
  2. Step 2: Convert to fraction form
    14,153.13/19,531.13 = 7,865.37/x
  3. Step 3: Cross multiply
    14,153.13x = 19,531.13 × 7,865.37
  4. Step 4: Simplify right side
    14,153.13x = 153,619,524.64
  5. Step 5: Solve for x
    x = 153,619,524.64/14,153.13
  6. Step 6: Final answer
    x = 10,854.10

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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.