Home / 15,292.95-21,111.70-10,255.34

Finding the Fourth Proportional to 15,292.95, 21,111.70 and 10,255.34

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Solution

The fourth proportional to 15,292.95, 21,111.70 and 10,255.34 is: 14,157.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,292.95 : 21,111.70 = 10,255.34 : x
  2. Step 2: Convert to fraction form
    15,292.95/21,111.70 = 10,255.34/x
  3. Step 3: Cross multiply
    15,292.95x = 21,111.70 × 10,255.34
  4. Step 4: Simplify right side
    15,292.95x = 216,507,560.25
  5. Step 5: Solve for x
    x = 216,507,560.25/15,292.95
  6. Step 6: Final answer
    x = 14,157.34

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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.