Home / 13,437.60-20,159.10-11,261.40

Finding the Fourth Proportional to 13,437.60, 20,159.10 and 11,261.40

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Solution

The fourth proportional to 13,437.60, 20,159.10 and 11,261.40 is: 16,894.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,437.60 : 20,159.10 = 11,261.40 : x
  2. Step 2: Convert to fraction form
    13,437.60/20,159.10 = 11,261.40/x
  3. Step 3: Cross multiply
    13,437.60x = 20,159.10 × 11,261.40
  4. Step 4: Simplify right side
    13,437.60x = 227,019,688.74
  5. Step 5: Solve for x
    x = 227,019,688.74/13,437.60
  6. Step 6: Final answer
    x = 16,894.36

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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.