Home / 13,212.06-19,807.64-6,543.84

Finding the Fourth Proportional to 13,212.06, 19,807.64 and 6,543.84

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Solution

The fourth proportional to 13,212.06, 19,807.64 and 6,543.84 is: 9,810.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,212.06 : 19,807.64 = 6,543.84 : x
  2. Step 2: Convert to fraction form
    13,212.06/19,807.64 = 6,543.84/x
  3. Step 3: Cross multiply
    13,212.06x = 19,807.64 × 6,543.84
  4. Step 4: Simplify right side
    13,212.06x = 129,617,981.62
  5. Step 5: Solve for x
    x = 129,617,981.62/13,212.06
  6. Step 6: Final answer
    x = 9,810.58

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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.