Home / 13,436.58-18,547.65-8,958.70

Finding the Fourth Proportional to 13,436.58, 18,547.65 and 8,958.70

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Solution

The fourth proportional to 13,436.58, 18,547.65 and 8,958.70 is: 12,366.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,436.58 : 18,547.65 = 8,958.70 : x
  2. Step 2: Convert to fraction form
    13,436.58/18,547.65 = 8,958.70/x
  3. Step 3: Cross multiply
    13,436.58x = 18,547.65 × 8,958.70
  4. Step 4: Simplify right side
    13,436.58x = 166,162,832.06
  5. Step 5: Solve for x
    x = 166,162,832.06/13,436.58
  6. Step 6: Final answer
    x = 12,366.45

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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.