Home / 13,656.64-20,484.88-5,870.92

Finding the Fourth Proportional to 13,656.64, 20,484.88 and 5,870.92

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Solution

The fourth proportional to 13,656.64, 20,484.88 and 5,870.92 is: 8,806.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,656.64 : 20,484.88 = 5,870.92 : x
  2. Step 2: Convert to fraction form
    13,656.64/20,484.88 = 5,870.92/x
  3. Step 3: Cross multiply
    13,656.64x = 20,484.88 × 5,870.92
  4. Step 4: Simplify right side
    13,656.64x = 120,265,091.69
  5. Step 5: Solve for x
    x = 120,265,091.69/13,656.64
  6. Step 6: Final answer
    x = 8,806.35

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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.