Home / 12,187.08-16,816.50-7,152.52

Finding the Fourth Proportional to 12,187.08, 16,816.50 and 7,152.52

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Solution

The fourth proportional to 12,187.08, 16,816.50 and 7,152.52 is: 9,869.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,187.08 : 16,816.50 = 7,152.52 : x
  2. Step 2: Convert to fraction form
    12,187.08/16,816.50 = 7,152.52/x
  3. Step 3: Cross multiply
    12,187.08x = 16,816.50 × 7,152.52
  4. Step 4: Simplify right side
    12,187.08x = 120,280,352.58
  5. Step 5: Solve for x
    x = 120,280,352.58/12,187.08
  6. Step 6: Final answer
    x = 9,869.50

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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.