Home / 16,215.51-22,357.26-13,530.66

Finding the Fourth Proportional to 16,215.51, 22,357.26 and 13,530.66

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Solution

The fourth proportional to 16,215.51, 22,357.26 and 13,530.66 is: 18,655.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,215.51 : 22,357.26 = 13,530.66 : x
  2. Step 2: Convert to fraction form
    16,215.51/22,357.26 = 13,530.66/x
  3. Step 3: Cross multiply
    16,215.51x = 22,357.26 × 13,530.66
  4. Step 4: Simplify right side
    16,215.51x = 302,508,483.59
  5. Step 5: Solve for x
    x = 302,508,483.59/16,215.51
  6. Step 6: Final answer
    x = 18,655.50

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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.