Home / 12,758.10-19,137.15-9,302.10

Finding the Fourth Proportional to 12,758.10, 19,137.15 and 9,302.10

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Solution

The fourth proportional to 12,758.10, 19,137.15 and 9,302.10 is: 13,953.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,758.10 : 19,137.15 = 9,302.10 : x
  2. Step 2: Convert to fraction form
    12,758.10/19,137.15 = 9,302.10/x
  3. Step 3: Cross multiply
    12,758.10x = 19,137.15 × 9,302.10
  4. Step 4: Simplify right side
    12,758.10x = 178,015,683.02
  5. Step 5: Solve for x
    x = 178,015,683.02/12,758.10
  6. Step 6: Final answer
    x = 13,953.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.