Home / 13,973.50-19,283.84-7,686.28

Finding the Fourth Proportional to 13,973.50, 19,283.84 and 7,686.28

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Solution

The fourth proportional to 13,973.50, 19,283.84 and 7,686.28 is: 10,607.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,973.50 : 19,283.84 = 7,686.28 : x
  2. Step 2: Convert to fraction form
    13,973.50/19,283.84 = 7,686.28/x
  3. Step 3: Cross multiply
    13,973.50x = 19,283.84 × 7,686.28
  4. Step 4: Simplify right side
    13,973.50x = 148,220,993.72
  5. Step 5: Solve for x
    x = 148,220,993.72/13,973.50
  6. Step 6: Final answer
    x = 10,607.29

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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.