Home / 15,479.06-21,360.51-8,763.35

Finding the Fourth Proportional to 15,479.06, 21,360.51 and 8,763.35

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Solution

The fourth proportional to 15,479.06, 21,360.51 and 8,763.35 is: 12,093.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,479.06 : 21,360.51 = 8,763.35 : x
  2. Step 2: Convert to fraction form
    15,479.06/21,360.51 = 8,763.35/x
  3. Step 3: Cross multiply
    15,479.06x = 21,360.51 × 8,763.35
  4. Step 4: Simplify right side
    15,479.06x = 187,189,518.51
  5. Step 5: Solve for x
    x = 187,189,518.51/15,479.06
  6. Step 6: Final answer
    x = 12,093.08

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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.