Home / 15,840.24-21,859.41-8,767.08

Finding the Fourth Proportional to 15,840.24, 21,859.41 and 8,767.08

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Solution

The fourth proportional to 15,840.24, 21,859.41 and 8,767.08 is: 12,098.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,840.24 : 21,859.41 = 8,767.08 : x
  2. Step 2: Convert to fraction form
    15,840.24/21,859.41 = 8,767.08/x
  3. Step 3: Cross multiply
    15,840.24x = 21,859.41 × 8,767.08
  4. Step 4: Simplify right side
    15,840.24x = 191,643,196.22
  5. Step 5: Solve for x
    x = 191,643,196.22/15,840.24
  6. Step 6: Final answer
    x = 12,098.50

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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.