Home / 12,477.60-17,217.84-6,888.24

Finding the Fourth Proportional to 12,477.60, 17,217.84 and 6,888.24

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Solution

The fourth proportional to 12,477.60, 17,217.84 and 6,888.24 is: 9,505.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,477.60 : 17,217.84 = 6,888.24 : x
  2. Step 2: Convert to fraction form
    12,477.60/17,217.84 = 6,888.24/x
  3. Step 3: Cross multiply
    12,477.60x = 17,217.84 × 6,888.24
  4. Step 4: Simplify right side
    12,477.60x = 118,600,614.20
  5. Step 5: Solve for x
    x = 118,600,614.20/12,477.60
  6. Step 6: Final answer
    x = 9,505.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.