Home / 13,543.20-18,688.75-7,573.84

Finding the Fourth Proportional to 13,543.20, 18,688.75 and 7,573.84

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Solution

The fourth proportional to 13,543.20, 18,688.75 and 7,573.84 is: 10,451.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,543.20 : 18,688.75 = 7,573.84 : x
  2. Step 2: Convert to fraction form
    13,543.20/18,688.75 = 7,573.84/x
  3. Step 3: Cross multiply
    13,543.20x = 18,688.75 × 7,573.84
  4. Step 4: Simplify right side
    13,543.20x = 141,545,536.64
  5. Step 5: Solve for x
    x = 141,545,536.64/13,543.20
  6. Step 6: Final answer
    x = 10,451.41

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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.