Home / 13,949.42-19,248.03-8,918.10

Finding the Fourth Proportional to 13,949.42, 19,248.03 and 8,918.10

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Solution

The fourth proportional to 13,949.42, 19,248.03 and 8,918.10 is: 12,305.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,949.42 : 19,248.03 = 8,918.10 : x
  2. Step 2: Convert to fraction form
    13,949.42/19,248.03 = 8,918.10/x
  3. Step 3: Cross multiply
    13,949.42x = 19,248.03 × 8,918.10
  4. Step 4: Simplify right side
    13,949.42x = 171,655,856.34
  5. Step 5: Solve for x
    x = 171,655,856.34/13,949.42
  6. Step 6: Final answer
    x = 12,305.60

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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.