Home / 12,621.62-17,417.84-7,319.52

Finding the Fourth Proportional to 12,621.62, 17,417.84 and 7,319.52

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Solution

The fourth proportional to 12,621.62, 17,417.84 and 7,319.52 is: 10,100.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,621.62 : 17,417.84 = 7,319.52 : x
  2. Step 2: Convert to fraction form
    12,621.62/17,417.84 = 7,319.52/x
  3. Step 3: Cross multiply
    12,621.62x = 17,417.84 × 7,319.52
  4. Step 4: Simplify right side
    12,621.62x = 127,490,228.24
  5. Step 5: Solve for x
    x = 127,490,228.24/12,621.62
  6. Step 6: Final answer
    x = 10,100.94

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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.