Home / 12,300.24-18,448.80-4,508.40

Finding the Fourth Proportional to 12,300.24, 18,448.80 and 4,508.40

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Solution

The fourth proportional to 12,300.24, 18,448.80 and 4,508.40 is: 6,762.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,300.24 : 18,448.80 = 4,508.40 : x
  2. Step 2: Convert to fraction form
    12,300.24/18,448.80 = 4,508.40/x
  3. Step 3: Cross multiply
    12,300.24x = 18,448.80 × 4,508.40
  4. Step 4: Simplify right side
    12,300.24x = 83,174,569.92
  5. Step 5: Solve for x
    x = 83,174,569.92/12,300.24
  6. Step 6: Final answer
    x = 6,762.03

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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.