Home / 15,582.15-21,498.30-9,208.93

Finding the Fourth Proportional to 15,582.15, 21,498.30 and 9,208.93

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Solution

The fourth proportional to 15,582.15, 21,498.30 and 9,208.93 is: 12,705.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,582.15 : 21,498.30 = 9,208.93 : x
  2. Step 2: Convert to fraction form
    15,582.15/21,498.30 = 9,208.93/x
  3. Step 3: Cross multiply
    15,582.15x = 21,498.30 × 9,208.93
  4. Step 4: Simplify right side
    15,582.15x = 197,976,339.82
  5. Step 5: Solve for x
    x = 197,976,339.82/15,582.15
  6. Step 6: Final answer
    x = 12,705.33

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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.