Home / 13,259.67-18,300.09-8,557.62

Finding the Fourth Proportional to 13,259.67, 18,300.09 and 8,557.62

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Solution

The fourth proportional to 13,259.67, 18,300.09 and 8,557.62 is: 11,810.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,259.67 : 18,300.09 = 8,557.62 : x
  2. Step 2: Convert to fraction form
    13,259.67/18,300.09 = 8,557.62/x
  3. Step 3: Cross multiply
    13,259.67x = 18,300.09 × 8,557.62
  4. Step 4: Simplify right side
    13,259.67x = 156,605,216.19
  5. Step 5: Solve for x
    x = 156,605,216.19/13,259.67
  6. Step 6: Final answer
    x = 11,810.64

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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.