Home / 15,373.95-21,208.28-11,835.87

Finding the Fourth Proportional to 15,373.95, 21,208.28 and 11,835.87

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Solution

The fourth proportional to 15,373.95, 21,208.28 and 11,835.87 is: 16,327.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,373.95 : 21,208.28 = 11,835.87 : x
  2. Step 2: Convert to fraction form
    15,373.95/21,208.28 = 11,835.87/x
  3. Step 3: Cross multiply
    15,373.95x = 21,208.28 × 11,835.87
  4. Step 4: Simplify right side
    15,373.95x = 251,018,385.82
  5. Step 5: Solve for x
    x = 251,018,385.82/15,373.95
  6. Step 6: Final answer
    x = 16,327.51

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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.