Home / 15,726.06-21,686.40-14,360.58

Finding the Fourth Proportional to 15,726.06, 21,686.40 and 14,360.58

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Solution

The fourth proportional to 15,726.06, 21,686.40 and 14,360.58 is: 19,803.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,726.06 : 21,686.40 = 14,360.58 : x
  2. Step 2: Convert to fraction form
    15,726.06/21,686.40 = 14,360.58/x
  3. Step 3: Cross multiply
    15,726.06x = 21,686.40 × 14,360.58
  4. Step 4: Simplify right side
    15,726.06x = 311,429,282.11
  5. Step 5: Solve for x
    x = 311,429,282.11/15,726.06
  6. Step 6: Final answer
    x = 19,803.39

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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.