Home / 15,885.48-21,922.28-9,512.35

Finding the Fourth Proportional to 15,885.48, 21,922.28 and 9,512.35

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Solution

The fourth proportional to 15,885.48, 21,922.28 and 9,512.35 is: 13,127.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,885.48 : 21,922.28 = 9,512.35 : x
  2. Step 2: Convert to fraction form
    15,885.48/21,922.28 = 9,512.35/x
  3. Step 3: Cross multiply
    15,885.48x = 21,922.28 × 9,512.35
  4. Step 4: Simplify right side
    15,885.48x = 208,532,400.16
  5. Step 5: Solve for x
    x = 208,532,400.16/15,885.48
  6. Step 6: Final answer
    x = 13,127.23

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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.