Home / 18,515.04-25,528.53-12,854.66

Finding the Fourth Proportional to 18,515.04, 25,528.53 and 12,854.66

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Solution

The fourth proportional to 18,515.04, 25,528.53 and 12,854.66 is: 17,724.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,515.04 : 25,528.53 = 12,854.66 : x
  2. Step 2: Convert to fraction form
    18,515.04/25,528.53 = 12,854.66/x
  3. Step 3: Cross multiply
    18,515.04x = 25,528.53 × 12,854.66
  4. Step 4: Simplify right side
    18,515.04x = 328,160,494.01
  5. Step 5: Solve for x
    x = 328,160,494.01/18,515.04
  6. Step 6: Final answer
    x = 17,724.00

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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.