Home / 15,523.60-21,419.61-9,859.27

Finding the Fourth Proportional to 15,523.60, 21,419.61 and 9,859.27

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Solution

The fourth proportional to 15,523.60, 21,419.61 and 9,859.27 is: 13,603.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,523.60 : 21,419.61 = 9,859.27 : x
  2. Step 2: Convert to fraction form
    15,523.60/21,419.61 = 9,859.27/x
  3. Step 3: Cross multiply
    15,523.60x = 21,419.61 × 9,859.27
  4. Step 4: Simplify right side
    15,523.60x = 211,181,751.11
  5. Step 5: Solve for x
    x = 211,181,751.11/15,523.60
  6. Step 6: Final answer
    x = 13,603.92

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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.