Home / 19,887.12-27,448.40-12,614.51

Finding the Fourth Proportional to 19,887.12, 27,448.40 and 12,614.51

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Solution

The fourth proportional to 19,887.12, 27,448.40 and 12,614.51 is: 17,410.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,887.12 : 27,448.40 = 12,614.51 : x
  2. Step 2: Convert to fraction form
    19,887.12/27,448.40 = 12,614.51/x
  3. Step 3: Cross multiply
    19,887.12x = 27,448.40 × 12,614.51
  4. Step 4: Simplify right side
    19,887.12x = 346,248,066.21
  5. Step 5: Solve for x
    x = 346,248,066.21/19,887.12
  6. Step 6: Final answer
    x = 17,410.67

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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.