Home / 10,128.74-15,192.98-3,465.17

Finding the Fourth Proportional to 10,128.74, 15,192.98 and 3,465.17

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Solution

The fourth proportional to 10,128.74, 15,192.98 and 3,465.17 is: 5,197.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,128.74 : 15,192.98 = 3,465.17 : x
  2. Step 2: Convert to fraction form
    10,128.74/15,192.98 = 3,465.17/x
  3. Step 3: Cross multiply
    10,128.74x = 15,192.98 × 3,465.17
  4. Step 4: Simplify right side
    10,128.74x = 52,646,165.22
  5. Step 5: Solve for x
    x = 52,646,165.22/10,128.74
  6. Step 6: Final answer
    x = 5,197.70

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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.