Home / 10,125.95-15,188.40-3,551.63

Finding the Fourth Proportional to 10,125.95, 15,188.40 and 3,551.63

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Solution

The fourth proportional to 10,125.95, 15,188.40 and 3,551.63 is: 5,327.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,125.95 : 15,188.40 = 3,551.63 : x
  2. Step 2: Convert to fraction form
    10,125.95/15,188.40 = 3,551.63/x
  3. Step 3: Cross multiply
    10,125.95x = 15,188.40 × 3,551.63
  4. Step 4: Simplify right side
    10,125.95x = 53,943,501.15
  5. Step 5: Solve for x
    x = 53,943,501.15/10,125.95
  6. Step 6: Final answer
    x = 5,327.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.