Home / 12,184.47-16,815.33-7,407.77

Finding the Fourth Proportional to 12,184.47, 16,815.33 and 7,407.77

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Solution

The fourth proportional to 12,184.47, 16,815.33 and 7,407.77 is: 10,223.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,184.47 : 16,815.33 = 7,407.77 : x
  2. Step 2: Convert to fraction form
    12,184.47/16,815.33 = 7,407.77/x
  3. Step 3: Cross multiply
    12,184.47x = 16,815.33 × 7,407.77
  4. Step 4: Simplify right side
    12,184.47x = 124,564,013.04
  5. Step 5: Solve for x
    x = 124,564,013.04/12,184.47
  6. Step 6: Final answer
    x = 10,223.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.