Home / 10,130.97-13,981.44-5,655.59

Finding the Fourth Proportional to 10,130.97, 13,981.44 and 5,655.59

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Solution

The fourth proportional to 10,130.97, 13,981.44 and 5,655.59 is: 7,805.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,130.97 : 13,981.44 = 5,655.59 : x
  2. Step 2: Convert to fraction form
    10,130.97/13,981.44 = 5,655.59/x
  3. Step 3: Cross multiply
    10,130.97x = 13,981.44 × 5,655.59
  4. Step 4: Simplify right side
    10,130.97x = 79,073,222.34
  5. Step 5: Solve for x
    x = 79,073,222.34/10,130.97
  6. Step 6: Final answer
    x = 7,805.10

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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.