Home / 13,587.55-20,374.74-7,966.76

Finding the Fourth Proportional to 13,587.55, 20,374.74 and 7,966.76

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Solution

The fourth proportional to 13,587.55, 20,374.74 and 7,966.76 is: 11,946.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,587.55 : 20,374.74 = 7,966.76 : x
  2. Step 2: Convert to fraction form
    13,587.55/20,374.74 = 7,966.76/x
  3. Step 3: Cross multiply
    13,587.55x = 20,374.74 × 7,966.76
  4. Step 4: Simplify right side
    13,587.55x = 162,320,561.77
  5. Step 5: Solve for x
    x = 162,320,561.77/13,587.55
  6. Step 6: Final answer
    x = 11,946.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.