Home / 12,985.40-19,480.99-6,056.12

Finding the Fourth Proportional to 12,985.40, 19,480.99 and 6,056.12

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Solution

The fourth proportional to 12,985.40, 19,480.99 and 6,056.12 is: 9,085.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,985.40 : 19,480.99 = 6,056.12 : x
  2. Step 2: Convert to fraction form
    12,985.40/19,480.99 = 6,056.12/x
  3. Step 3: Cross multiply
    12,985.40x = 19,480.99 × 6,056.12
  4. Step 4: Simplify right side
    12,985.40x = 117,979,213.16
  5. Step 5: Solve for x
    x = 117,979,213.16/12,985.40
  6. Step 6: Final answer
    x = 9,085.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.