Home / 12,931.08-19,395.18-3,697.08

Finding the Fourth Proportional to 12,931.08, 19,395.18 and 3,697.08

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Solution

The fourth proportional to 12,931.08, 19,395.18 and 3,697.08 is: 5,545.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,931.08 : 19,395.18 = 3,697.08 : x
  2. Step 2: Convert to fraction form
    12,931.08/19,395.18 = 3,697.08/x
  3. Step 3: Cross multiply
    12,931.08x = 19,395.18 × 3,697.08
  4. Step 4: Simplify right side
    12,931.08x = 71,705,532.07
  5. Step 5: Solve for x
    x = 71,705,532.07/12,931.08
  6. Step 6: Final answer
    x = 5,545.21

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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.