Home / 13,159.74-18,154.35-7,567.50

Finding the Fourth Proportional to 13,159.74, 18,154.35 and 7,567.50

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Solution

The fourth proportional to 13,159.74, 18,154.35 and 7,567.50 is: 10,439.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,159.74 : 18,154.35 = 7,567.50 : x
  2. Step 2: Convert to fraction form
    13,159.74/18,154.35 = 7,567.50/x
  3. Step 3: Cross multiply
    13,159.74x = 18,154.35 × 7,567.50
  4. Step 4: Simplify right side
    13,159.74x = 137,383,043.63
  5. Step 5: Solve for x
    x = 137,383,043.63/13,159.74
  6. Step 6: Final answer
    x = 10,439.65

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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.