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Finding the Fourth Proportional to 13,064.49, 18,023.04 and 7,756.29

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Solution

The fourth proportional to 13,064.49, 18,023.04 and 7,756.29 is: 10,700.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,064.49 : 18,023.04 = 7,756.29 : x
  2. Step 2: Convert to fraction form
    13,064.49/18,023.04 = 7,756.29/x
  3. Step 3: Cross multiply
    13,064.49x = 18,023.04 × 7,756.29
  4. Step 4: Simplify right side
    13,064.49x = 139,791,924.92
  5. Step 5: Solve for x
    x = 139,791,924.92/13,064.49
  6. Step 6: Final answer
    x = 10,700.14

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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.