Home / 12,837.60-19,259.10-7,286.40

Finding the Fourth Proportional to 12,837.60, 19,259.10 and 7,286.40

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Solution

The fourth proportional to 12,837.60, 19,259.10 and 7,286.40 is: 10,931.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,837.60 : 19,259.10 = 7,286.40 : x
  2. Step 2: Convert to fraction form
    12,837.60/19,259.10 = 7,286.40/x
  3. Step 3: Cross multiply
    12,837.60x = 19,259.10 × 7,286.40
  4. Step 4: Simplify right side
    12,837.60x = 140,329,506.24
  5. Step 5: Solve for x
    x = 140,329,506.24/12,837.60
  6. Step 6: Final answer
    x = 10,931.13

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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.