Home / 13,248.56-18,303.72-11,280.08

Finding the Fourth Proportional to 13,248.56, 18,303.72 and 11,280.08

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Solution

The fourth proportional to 13,248.56, 18,303.72 and 11,280.08 is: 15,584.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,248.56 : 18,303.72 = 11,280.08 : x
  2. Step 2: Convert to fraction form
    13,248.56/18,303.72 = 11,280.08/x
  3. Step 3: Cross multiply
    13,248.56x = 18,303.72 × 11,280.08
  4. Step 4: Simplify right side
    13,248.56x = 206,467,425.90
  5. Step 5: Solve for x
    x = 206,467,425.90/13,248.56
  6. Step 6: Final answer
    x = 15,584.14

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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.