Home / 12,320.49-18,488.03-4,534.77

Finding the Fourth Proportional to 12,320.49, 18,488.03 and 4,534.77

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Solution

The fourth proportional to 12,320.49, 18,488.03 and 4,534.77 is: 6,804.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,320.49 : 18,488.03 = 4,534.77 : x
  2. Step 2: Convert to fraction form
    12,320.49/18,488.03 = 4,534.77/x
  3. Step 3: Cross multiply
    12,320.49x = 18,488.03 × 4,534.77
  4. Step 4: Simplify right side
    12,320.49x = 83,838,963.80
  5. Step 5: Solve for x
    x = 83,838,963.80/12,320.49
  6. Step 6: Final answer
    x = 6,804.84

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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.