Home / 13,385.81-18,455.62-8,597.30

Finding the Fourth Proportional to 13,385.81, 18,455.62 and 8,597.30

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Solution

The fourth proportional to 13,385.81, 18,455.62 and 8,597.30 is: 11,853.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,385.81 : 18,455.62 = 8,597.30 : x
  2. Step 2: Convert to fraction form
    13,385.81/18,455.62 = 8,597.30/x
  3. Step 3: Cross multiply
    13,385.81x = 18,455.62 × 8,597.30
  4. Step 4: Simplify right side
    13,385.81x = 158,668,501.83
  5. Step 5: Solve for x
    x = 158,668,501.83/13,385.81
  6. Step 6: Final answer
    x = 11,853.49

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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.