Home / 13,587.57-20,364.84-9,880.56

Finding the Fourth Proportional to 13,587.57, 20,364.84 and 9,880.56

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Solution

The fourth proportional to 13,587.57, 20,364.84 and 9,880.56 is: 14,808.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,587.57 : 20,364.84 = 9,880.56 : x
  2. Step 2: Convert to fraction form
    13,587.57/20,364.84 = 9,880.56/x
  3. Step 3: Cross multiply
    13,587.57x = 20,364.84 × 9,880.56
  4. Step 4: Simplify right side
    13,587.57x = 201,216,023.51
  5. Step 5: Solve for x
    x = 201,216,023.51/13,587.57
  6. Step 6: Final answer
    x = 14,808.83

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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.