Home / 13,860.50-19,127.90-7,573.28

Finding the Fourth Proportional to 13,860.50, 19,127.90 and 7,573.28

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Solution

The fourth proportional to 13,860.50, 19,127.90 and 7,573.28 is: 10,451.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,860.50 : 19,127.90 = 7,573.28 : x
  2. Step 2: Convert to fraction form
    13,860.50/19,127.90 = 7,573.28/x
  3. Step 3: Cross multiply
    13,860.50x = 19,127.90 × 7,573.28
  4. Step 4: Simplify right side
    13,860.50x = 144,860,904.65
  5. Step 5: Solve for x
    x = 144,860,904.65/13,860.50
  6. Step 6: Final answer
    x = 10,451.35

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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.