Home / 13,322.21-19,966.55-7,066.76

Finding the Fourth Proportional to 13,322.21, 19,966.55 and 7,066.76

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Solution

The fourth proportional to 13,322.21, 19,966.55 and 7,066.76 is: 10,591.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,322.21 : 19,966.55 = 7,066.76 : x
  2. Step 2: Convert to fraction form
    13,322.21/19,966.55 = 7,066.76/x
  3. Step 3: Cross multiply
    13,322.21x = 19,966.55 × 7,066.76
  4. Step 4: Simplify right side
    13,322.21x = 141,098,681.71
  5. Step 5: Solve for x
    x = 141,098,681.71/13,322.21
  6. Step 6: Final answer
    x = 10,591.24

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1.5x scale

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.