Home / 15,887.95-21,926.05-9,515.58

Finding the Fourth Proportional to 15,887.95, 21,926.05 and 9,515.58

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Solution

The fourth proportional to 15,887.95, 21,926.05 and 9,515.58 is: 13,131.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,887.95 : 21,926.05 = 9,515.58 : x
  2. Step 2: Convert to fraction form
    15,887.95/21,926.05 = 9,515.58/x
  3. Step 3: Cross multiply
    15,887.95x = 21,926.05 × 9,515.58
  4. Step 4: Simplify right side
    15,887.95x = 208,639,030.37
  5. Step 5: Solve for x
    x = 208,639,030.37/15,887.95
  6. Step 6: Final answer
    x = 13,131.91

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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.