Home / 11,275.58-15,558.15-6,239.56

Finding the Fourth Proportional to 11,275.58, 15,558.15 and 6,239.56

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Solution

The fourth proportional to 11,275.58, 15,558.15 and 6,239.56 is: 8,609.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,275.58 : 15,558.15 = 6,239.56 : x
  2. Step 2: Convert to fraction form
    11,275.58/15,558.15 = 6,239.56/x
  3. Step 3: Cross multiply
    11,275.58x = 15,558.15 × 6,239.56
  4. Step 4: Simplify right side
    11,275.58x = 97,075,962.78
  5. Step 5: Solve for x
    x = 97,075,962.78/11,275.58
  6. Step 6: Final answer
    x = 8,609.40

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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.