Home / 15,595.18-21,519.48-8,880.82

Finding the Fourth Proportional to 15,595.18, 21,519.48 and 8,880.82

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Solution

The fourth proportional to 15,595.18, 21,519.48 and 8,880.82 is: 12,254.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,595.18 : 21,519.48 = 8,880.82 : x
  2. Step 2: Convert to fraction form
    15,595.18/21,519.48 = 8,880.82/x
  3. Step 3: Cross multiply
    15,595.18x = 21,519.48 × 8,880.82
  4. Step 4: Simplify right side
    15,595.18x = 191,110,628.37
  5. Step 5: Solve for x
    x = 191,110,628.37/15,595.18
  6. Step 6: Final answer
    x = 12,254.47

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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.