Home / 13,265.80-19,866.30-8,859.40

Finding the Fourth Proportional to 13,265.80, 19,866.30 and 8,859.40

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Solution

The fourth proportional to 13,265.80, 19,866.30 and 8,859.40 is: 13,267.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,265.80 : 19,866.30 = 8,859.40 : x
  2. Step 2: Convert to fraction form
    13,265.80/19,866.30 = 8,859.40/x
  3. Step 3: Cross multiply
    13,265.80x = 19,866.30 × 8,859.40
  4. Step 4: Simplify right side
    13,265.80x = 176,003,498.22
  5. Step 5: Solve for x
    x = 176,003,498.22/13,265.80
  6. Step 6: Final answer
    x = 13,267.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.