Home / 12,681.02-17,499.48-7,015.62

Finding the Fourth Proportional to 12,681.02, 17,499.48 and 7,015.62

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Solution

The fourth proportional to 12,681.02, 17,499.48 and 7,015.62 is: 9,681.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,681.02 : 17,499.48 = 7,015.62 : x
  2. Step 2: Convert to fraction form
    12,681.02/17,499.48 = 7,015.62/x
  3. Step 3: Cross multiply
    12,681.02x = 17,499.48 × 7,015.62
  4. Step 4: Simplify right side
    12,681.02x = 122,769,701.88
  5. Step 5: Solve for x
    x = 122,769,701.88/12,681.02
  6. Step 6: Final answer
    x = 9,681.37

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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.