Home / 12,123.16-18,184.74-10,474.72

Finding the Fourth Proportional to 12,123.16, 18,184.74 and 10,474.72

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Solution

The fourth proportional to 12,123.16, 18,184.74 and 10,474.72 is: 15,712.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,123.16 : 18,184.74 = 10,474.72 : x
  2. Step 2: Convert to fraction form
    12,123.16/18,184.74 = 10,474.72/x
  3. Step 3: Cross multiply
    12,123.16x = 18,184.74 × 10,474.72
  4. Step 4: Simplify right side
    12,123.16x = 190,480,059.77
  5. Step 5: Solve for x
    x = 190,480,059.77/12,123.16
  6. Step 6: Final answer
    x = 15,712.08

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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.