Home / 13,695.36-20,543.28-4,335

Finding the Fourth Proportional to 13,695.36, 20,543.28 and 4,335

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Solution

The fourth proportional to 13,695.36, 20,543.28 and 4,335 is: 6,502.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,695.36 : 20,543.28 = 4,335 : x
  2. Step 2: Convert to fraction form
    13,695.36/20,543.28 = 4,335/x
  3. Step 3: Cross multiply
    13,695.36x = 20,543.28 × 4,335
  4. Step 4: Simplify right side
    13,695.36x = 89,055,118.80
  5. Step 5: Solve for x
    x = 89,055,118.80/13,695.36
  6. Step 6: Final answer
    x = 6,502.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.