Home / 12,603.75-18,908.76-5,210.34

Finding the Fourth Proportional to 12,603.75, 18,908.76 and 5,210.34

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Solution

The fourth proportional to 12,603.75, 18,908.76 and 5,210.34 is: 7,816.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,603.75 : 18,908.76 = 5,210.34 : x
  2. Step 2: Convert to fraction form
    12,603.75/18,908.76 = 5,210.34/x
  3. Step 3: Cross multiply
    12,603.75x = 18,908.76 × 5,210.34
  4. Step 4: Simplify right side
    12,603.75x = 98,521,068.58
  5. Step 5: Solve for x
    x = 98,521,068.58/12,603.75
  6. Step 6: Final answer
    x = 7,816.81

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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.