Home / 12,030.16-18,051.72-9,107.76

Finding the Fourth Proportional to 12,030.16, 18,051.72 and 9,107.76

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Solution

The fourth proportional to 12,030.16, 18,051.72 and 9,107.76 is: 13,666.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,030.16 : 18,051.72 = 9,107.76 : x
  2. Step 2: Convert to fraction form
    12,030.16/18,051.72 = 9,107.76/x
  3. Step 3: Cross multiply
    12,030.16x = 18,051.72 × 9,107.76
  4. Step 4: Simplify right side
    12,030.16x = 164,410,733.35
  5. Step 5: Solve for x
    x = 164,410,733.35/12,030.16
  6. Step 6: Final answer
    x = 13,666.55

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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.