Home / 14,790.23-20,407.88-8,415.81

Finding the Fourth Proportional to 14,790.23, 20,407.88 and 8,415.81

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Solution

The fourth proportional to 14,790.23, 20,407.88 and 8,415.81 is: 11,612.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,790.23 : 20,407.88 = 8,415.81 : x
  2. Step 2: Convert to fraction form
    14,790.23/20,407.88 = 8,415.81/x
  3. Step 3: Cross multiply
    14,790.23x = 20,407.88 × 8,415.81
  4. Step 4: Simplify right side
    14,790.23x = 171,748,840.58
  5. Step 5: Solve for x
    x = 171,748,840.58/14,790.23
  6. Step 6: Final answer
    x = 11,612.32

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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.