Home / 13,560.64-18,704.02-12,445.18

Finding the Fourth Proportional to 13,560.64, 18,704.02 and 12,445.18

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Solution

The fourth proportional to 13,560.64, 18,704.02 and 12,445.18 is: 17,165.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,560.64 : 18,704.02 = 12,445.18 : x
  2. Step 2: Convert to fraction form
    13,560.64/18,704.02 = 12,445.18/x
  3. Step 3: Cross multiply
    13,560.64x = 18,704.02 × 12,445.18
  4. Step 4: Simplify right side
    13,560.64x = 232,774,895.62
  5. Step 5: Solve for x
    x = 232,774,895.62/13,560.64
  6. Step 6: Final answer
    x = 17,165.48

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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.