Home / 13,429.56-18,533.32-9,189.52

Finding the Fourth Proportional to 13,429.56, 18,533.32 and 9,189.52

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Solution

The fourth proportional to 13,429.56, 18,533.32 and 9,189.52 is: 12,681.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,429.56 : 18,533.32 = 9,189.52 : x
  2. Step 2: Convert to fraction form
    13,429.56/18,533.32 = 9,189.52/x
  3. Step 3: Cross multiply
    13,429.56x = 18,533.32 × 9,189.52
  4. Step 4: Simplify right side
    13,429.56x = 170,312,222.14
  5. Step 5: Solve for x
    x = 170,312,222.14/13,429.56
  6. Step 6: Final answer
    x = 12,681.89

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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.