Home / 15,417.86-21,277.60-8,701.03

Finding the Fourth Proportional to 15,417.86, 21,277.60 and 8,701.03

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Solution

The fourth proportional to 15,417.86, 21,277.60 and 8,701.03 is: 12,007.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,417.86 : 21,277.60 = 8,701.03 : x
  2. Step 2: Convert to fraction form
    15,417.86/21,277.60 = 8,701.03/x
  3. Step 3: Cross multiply
    15,417.86x = 21,277.60 × 8,701.03
  4. Step 4: Simplify right side
    15,417.86x = 185,137,035.93
  5. Step 5: Solve for x
    x = 185,137,035.93/15,417.86
  6. Step 6: Final answer
    x = 12,007.96

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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.