Home / 13,830.50-19,086.10-7,542.92

Finding the Fourth Proportional to 13,830.50, 19,086.10 and 7,542.92

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Solution

The fourth proportional to 13,830.50, 19,086.10 and 7,542.92 is: 10,409.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,830.50 : 19,086.10 = 7,542.92 : x
  2. Step 2: Convert to fraction form
    13,830.50/19,086.10 = 7,542.92/x
  3. Step 3: Cross multiply
    13,830.50x = 19,086.10 × 7,542.92
  4. Step 4: Simplify right side
    13,830.50x = 143,964,925.41
  5. Step 5: Solve for x
    x = 143,964,925.41/13,830.50
  6. Step 6: Final answer
    x = 10,409.24

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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.