Home / 13,314.60-19,971.90-5,521.32

Finding the Fourth Proportional to 13,314.60, 19,971.90 and 5,521.32

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Solution

The fourth proportional to 13,314.60, 19,971.90 and 5,521.32 is: 8,281.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,314.60 : 19,971.90 = 5,521.32 : x
  2. Step 2: Convert to fraction form
    13,314.60/19,971.90 = 5,521.32/x
  3. Step 3: Cross multiply
    13,314.60x = 19,971.90 × 5,521.32
  4. Step 4: Simplify right side
    13,314.60x = 110,271,250.91
  5. Step 5: Solve for x
    x = 110,271,250.91/13,314.60
  6. Step 6: Final answer
    x = 8,281.98

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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.