Home / 13,101.48-19,639.86-6,521.44

Finding the Fourth Proportional to 13,101.48, 19,639.86 and 6,521.44

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Solution

The fourth proportional to 13,101.48, 19,639.86 and 6,521.44 is: 9,776.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,101.48 : 19,639.86 = 6,521.44 : x
  2. Step 2: Convert to fraction form
    13,101.48/19,639.86 = 6,521.44/x
  3. Step 3: Cross multiply
    13,101.48x = 19,639.86 × 6,521.44
  4. Step 4: Simplify right side
    13,101.48x = 128,080,168.60
  5. Step 5: Solve for x
    x = 128,080,168.60/13,101.48
  6. Step 6: Final answer
    x = 9,776.01

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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.