Home / 10,130.80-15,197.88-3,555.28

Finding the Fourth Proportional to 10,130.80, 15,197.88 and 3,555.28

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Solution

The fourth proportional to 10,130.80, 15,197.88 and 3,555.28 is: 5,333.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,130.80 : 15,197.88 = 3,555.28 : x
  2. Step 2: Convert to fraction form
    10,130.80/15,197.88 = 3,555.28/x
  3. Step 3: Cross multiply
    10,130.80x = 15,197.88 × 3,555.28
  4. Step 4: Simplify right side
    10,130.80x = 54,032,718.81
  5. Step 5: Solve for x
    x = 54,032,718.81/10,130.80
  6. Step 6: Final answer
    x = 5,333.51

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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.