Home / 10,130.92-13,981.62-5,655.08

Finding the Fourth Proportional to 10,130.92, 13,981.62 and 5,655.08

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Solution

The fourth proportional to 10,130.92, 13,981.62 and 5,655.08 is: 7,804.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,130.92 : 13,981.62 = 5,655.08 : x
  2. Step 2: Convert to fraction form
    10,130.92/13,981.62 = 5,655.08/x
  3. Step 3: Cross multiply
    10,130.92x = 13,981.62 × 5,655.08
  4. Step 4: Simplify right side
    10,130.92x = 79,067,179.63
  5. Step 5: Solve for x
    x = 79,067,179.63/10,130.92
  6. Step 6: Final answer
    x = 7,804.54

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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.