Home / 14,543.55-20,070.69-8,256.51

Finding the Fourth Proportional to 14,543.55, 20,070.69 and 8,256.51

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Solution

The fourth proportional to 14,543.55, 20,070.69 and 8,256.51 is: 11,394.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,543.55 : 20,070.69 = 8,256.51 : x
  2. Step 2: Convert to fraction form
    14,543.55/20,070.69 = 8,256.51/x
  3. Step 3: Cross multiply
    14,543.55x = 20,070.69 × 8,256.51
  4. Step 4: Simplify right side
    14,543.55x = 165,713,852.69
  5. Step 5: Solve for x
    x = 165,713,852.69/14,543.55
  6. Step 6: Final answer
    x = 11,394.32

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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.