Home / 11,686.12-16,130.02-6,970.60

Finding the Fourth Proportional to 11,686.12, 16,130.02 and 6,970.60

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Solution

The fourth proportional to 11,686.12, 16,130.02 and 6,970.60 is: 9,621.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,686.12 : 16,130.02 = 6,970.60 : x
  2. Step 2: Convert to fraction form
    11,686.12/16,130.02 = 6,970.60/x
  3. Step 3: Cross multiply
    11,686.12x = 16,130.02 × 6,970.60
  4. Step 4: Simplify right side
    11,686.12x = 112,435,917.41
  5. Step 5: Solve for x
    x = 112,435,917.41/11,686.12
  6. Step 6: Final answer
    x = 9,621.32

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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.