Home / 13,729.80-18,947.58-7,597.58

Finding the Fourth Proportional to 13,729.80, 18,947.58 and 7,597.58

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Solution

The fourth proportional to 13,729.80, 18,947.58 and 7,597.58 is: 10,484.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,729.80 : 18,947.58 = 7,597.58 : x
  2. Step 2: Convert to fraction form
    13,729.80/18,947.58 = 7,597.58/x
  3. Step 3: Cross multiply
    13,729.80x = 18,947.58 × 7,597.58
  4. Step 4: Simplify right side
    13,729.80x = 143,955,688.49
  5. Step 5: Solve for x
    x = 143,955,688.49/13,729.80
  6. Step 6: Final answer
    x = 10,484.91

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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.