Home / 13,973.85-19,282.86-7,686.63

Finding the Fourth Proportional to 13,973.85, 19,282.86 and 7,686.63

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Solution

The fourth proportional to 13,973.85, 19,282.86 and 7,686.63 is: 10,606.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,973.85 : 19,282.86 = 7,686.63 : x
  2. Step 2: Convert to fraction form
    13,973.85/19,282.86 = 7,686.63/x
  3. Step 3: Cross multiply
    13,973.85x = 19,282.86 × 7,686.63
  4. Step 4: Simplify right side
    13,973.85x = 148,220,210.16
  5. Step 5: Solve for x
    x = 148,220,210.16/13,973.85
  6. Step 6: Final answer
    x = 10,606.97

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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.