Home / 13,536.84-18,680.70-7,487.34

Finding the Fourth Proportional to 13,536.84, 18,680.70 and 7,487.34

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Solution

The fourth proportional to 13,536.84, 18,680.70 and 7,487.34 is: 10,332.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,536.84 : 18,680.70 = 7,487.34 : x
  2. Step 2: Convert to fraction form
    13,536.84/18,680.70 = 7,487.34/x
  3. Step 3: Cross multiply
    13,536.84x = 18,680.70 × 7,487.34
  4. Step 4: Simplify right side
    13,536.84x = 139,868,752.34
  5. Step 5: Solve for x
    x = 139,868,752.34/13,536.84
  6. Step 6: Final answer
    x = 10,332.45

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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.