Home / 13,597.73-18,783.81-12,888.35

Finding the Fourth Proportional to 13,597.73, 18,783.81 and 12,888.35

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Solution

The fourth proportional to 13,597.73, 18,783.81 and 12,888.35 is: 17,803.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,597.73 : 18,783.81 = 12,888.35 : x
  2. Step 2: Convert to fraction form
    13,597.73/18,783.81 = 12,888.35/x
  3. Step 3: Cross multiply
    13,597.73x = 18,783.81 × 12,888.35
  4. Step 4: Simplify right side
    13,597.73x = 242,092,253.17
  5. Step 5: Solve for x
    x = 242,092,253.17/13,597.73
  6. Step 6: Final answer
    x = 17,803.87

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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.