Home / 15,875.55-21,909.60-8,804.25

Finding the Fourth Proportional to 15,875.55, 21,909.60 and 8,804.25

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Solution

The fourth proportional to 15,875.55, 21,909.60 and 8,804.25 is: 12,150.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,875.55 : 21,909.60 = 8,804.25 : x
  2. Step 2: Convert to fraction form
    15,875.55/21,909.60 = 8,804.25/x
  3. Step 3: Cross multiply
    15,875.55x = 21,909.60 × 8,804.25
  4. Step 4: Simplify right side
    15,875.55x = 192,897,595.80
  5. Step 5: Solve for x
    x = 192,897,595.80/15,875.55
  6. Step 6: Final answer
    x = 12,150.61

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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.