Home / 15,845.77-21,867.45-9,130.26

Finding the Fourth Proportional to 15,845.77, 21,867.45 and 9,130.26

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Solution

The fourth proportional to 15,845.77, 21,867.45 and 9,130.26 is: 12,599.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,845.77 : 21,867.45 = 9,130.26 : x
  2. Step 2: Convert to fraction form
    15,845.77/21,867.45 = 9,130.26/x
  3. Step 3: Cross multiply
    15,845.77x = 21,867.45 × 9,130.26
  4. Step 4: Simplify right side
    15,845.77x = 199,655,504.04
  5. Step 5: Solve for x
    x = 199,655,504.04/15,845.77
  6. Step 6: Final answer
    x = 12,599.93

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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.