Home / 15,468.95-21,347.03-8,395.22

Finding the Fourth Proportional to 15,468.95, 21,347.03 and 8,395.22

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Solution

The fourth proportional to 15,468.95, 21,347.03 and 8,395.22 is: 11,585.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,468.95 : 21,347.03 = 8,395.22 : x
  2. Step 2: Convert to fraction form
    15,468.95/21,347.03 = 8,395.22/x
  3. Step 3: Cross multiply
    15,468.95x = 21,347.03 × 8,395.22
  4. Step 4: Simplify right side
    15,468.95x = 179,212,864.49
  5. Step 5: Solve for x
    x = 179,212,864.49/15,468.95
  6. Step 6: Final answer
    x = 11,585.33

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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.