Home / 12,895.07-19,345.43-4,130.87

Finding the Fourth Proportional to 12,895.07, 19,345.43 and 4,130.87

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Solution

The fourth proportional to 12,895.07, 19,345.43 and 4,130.87 is: 6,197.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,895.07 : 19,345.43 = 4,130.87 : x
  2. Step 2: Convert to fraction form
    12,895.07/19,345.43 = 4,130.87/x
  3. Step 3: Cross multiply
    12,895.07x = 19,345.43 × 4,130.87
  4. Step 4: Simplify right side
    12,895.07x = 79,913,370.02
  5. Step 5: Solve for x
    x = 79,913,370.02/12,895.07
  6. Step 6: Final answer
    x = 6,197.21

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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.