Home / 13,170.24-19,585.98-12,754.98

Finding the Fourth Proportional to 13,170.24, 19,585.98 and 12,754.98

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Solution

The fourth proportional to 13,170.24, 19,585.98 and 12,754.98 is: 18,968.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,170.24 : 19,585.98 = 12,754.98 : x
  2. Step 2: Convert to fraction form
    13,170.24/19,585.98 = 12,754.98/x
  3. Step 3: Cross multiply
    13,170.24x = 19,585.98 × 12,754.98
  4. Step 4: Simplify right side
    13,170.24x = 249,818,783.18
  5. Step 5: Solve for x
    x = 249,818,783.18/13,170.24
  6. Step 6: Final answer
    x = 18,968.43

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.