Home / 13,033.12-17,985.60-7,064.80

Finding the Fourth Proportional to 13,033.12, 17,985.60 and 7,064.80

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Solution

The fourth proportional to 13,033.12, 17,985.60 and 7,064.80 is: 9,749.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,033.12 : 17,985.60 = 7,064.80 : x
  2. Step 2: Convert to fraction form
    13,033.12/17,985.60 = 7,064.80/x
  3. Step 3: Cross multiply
    13,033.12x = 17,985.60 × 7,064.80
  4. Step 4: Simplify right side
    13,033.12x = 127,064,666.88
  5. Step 5: Solve for x
    x = 127,064,666.88/13,033.12
  6. Step 6: Final answer
    x = 9,749.37

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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.