Home / 13,985.16-19,297.30-8,015.74

Finding the Fourth Proportional to 13,985.16, 19,297.30 and 8,015.74

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Solution

The fourth proportional to 13,985.16, 19,297.30 and 8,015.74 is: 11,060.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,985.16 : 19,297.30 = 8,015.74 : x
  2. Step 2: Convert to fraction form
    13,985.16/19,297.30 = 8,015.74/x
  3. Step 3: Cross multiply
    13,985.16x = 19,297.30 × 8,015.74
  4. Step 4: Simplify right side
    13,985.16x = 154,682,139.50
  5. Step 5: Solve for x
    x = 154,682,139.50/13,985.16
  6. Step 6: Final answer
    x = 11,060.45

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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.