Home / 13,536.16-18,679.76-7,946.08

Finding the Fourth Proportional to 13,536.16, 18,679.76 and 7,946.08

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Solution

The fourth proportional to 13,536.16, 18,679.76 and 7,946.08 is: 10,965.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,536.16 : 18,679.76 = 7,946.08 : x
  2. Step 2: Convert to fraction form
    13,536.16/18,679.76 = 7,946.08/x
  3. Step 3: Cross multiply
    13,536.16x = 18,679.76 × 7,946.08
  4. Step 4: Simplify right side
    13,536.16x = 148,430,867.34
  5. Step 5: Solve for x
    x = 148,430,867.34/13,536.16
  6. Step 6: Final answer
    x = 10,965.51

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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.