Home / 12,488.06-17,237.40-7,709.51

Finding the Fourth Proportional to 12,488.06, 17,237.40 and 7,709.51

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Solution

The fourth proportional to 12,488.06, 17,237.40 and 7,709.51 is: 10,641.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,488.06 : 17,237.40 = 7,709.51 : x
  2. Step 2: Convert to fraction form
    12,488.06/17,237.40 = 7,709.51/x
  3. Step 3: Cross multiply
    12,488.06x = 17,237.40 × 7,709.51
  4. Step 4: Simplify right side
    12,488.06x = 132,891,907.67
  5. Step 5: Solve for x
    x = 132,891,907.67/12,488.06
  6. Step 6: Final answer
    x = 10,641.52

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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.