Home / 15,465.51-21,332.91-13,667.22

Finding the Fourth Proportional to 15,465.51, 21,332.91 and 13,667.22

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Solution

The fourth proportional to 15,465.51, 21,332.91 and 13,667.22 is: 18,852.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,465.51 : 21,332.91 = 13,667.22 : x
  2. Step 2: Convert to fraction form
    15,465.51/21,332.91 = 13,667.22/x
  3. Step 3: Cross multiply
    15,465.51x = 21,332.91 × 13,667.22
  4. Step 4: Simplify right side
    15,465.51x = 291,561,574.21
  5. Step 5: Solve for x
    x = 291,561,574.21/15,465.51
  6. Step 6: Final answer
    x = 18,852.37

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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.