Home / 10,985.63-15,160.77-6,512.00

Finding the Fourth Proportional to 10,985.63, 15,160.77 and 6,512.00

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Solution

The fourth proportional to 10,985.63, 15,160.77 and 6,512.00 is: 8,986.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,985.63 : 15,160.77 = 6,512.00 : x
  2. Step 2: Convert to fraction form
    10,985.63/15,160.77 = 6,512.00/x
  3. Step 3: Cross multiply
    10,985.63x = 15,160.77 × 6,512.00
  4. Step 4: Simplify right side
    10,985.63x = 98,726,858.44
  5. Step 5: Solve for x
    x = 98,726,858.44/10,985.63
  6. Step 6: Final answer
    x = 8,986.91

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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.