Home / 15,557.15-21,473.69-9,590.69

Finding the Fourth Proportional to 15,557.15, 21,473.69 and 9,590.69

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Solution

The fourth proportional to 15,557.15, 21,473.69 and 9,590.69 is: 13,238.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,557.15 : 21,473.69 = 9,590.69 : x
  2. Step 2: Convert to fraction form
    15,557.15/21,473.69 = 9,590.69/x
  3. Step 3: Cross multiply
    15,557.15x = 21,473.69 × 9,590.69
  4. Step 4: Simplify right side
    15,557.15x = 205,947,348.62
  5. Step 5: Solve for x
    x = 205,947,348.62/15,557.15
  6. Step 6: Final answer
    x = 13,238.12

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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.