Home / 13,212.12-19,807.56-9,041.88

Finding the Fourth Proportional to 13,212.12, 19,807.56 and 9,041.88

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Solution

The fourth proportional to 13,212.12, 19,807.56 and 9,041.88 is: 13,555.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,212.12 : 19,807.56 = 9,041.88 : x
  2. Step 2: Convert to fraction form
    13,212.12/19,807.56 = 9,041.88/x
  3. Step 3: Cross multiply
    13,212.12x = 19,807.56 × 9,041.88
  4. Step 4: Simplify right side
    13,212.12x = 179,097,580.61
  5. Step 5: Solve for x
    x = 179,097,580.61/13,212.12
  6. Step 6: Final answer
    x = 13,555.55

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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.