Home / 14,642.51-20,215.85-11,278.98

Finding the Fourth Proportional to 14,642.51, 20,215.85 and 11,278.98

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Solution

The fourth proportional to 14,642.51, 20,215.85 and 11,278.98 is: 15,572.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,642.51 : 20,215.85 = 11,278.98 : x
  2. Step 2: Convert to fraction form
    14,642.51/20,215.85 = 11,278.98/x
  3. Step 3: Cross multiply
    14,642.51x = 20,215.85 × 11,278.98
  4. Step 4: Simplify right side
    14,642.51x = 228,014,111.44
  5. Step 5: Solve for x
    x = 228,014,111.44/14,642.51
  6. Step 6: Final answer
    x = 15,572.07

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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.