Home / 12,316.60-18,436.71-9,956.91

Finding the Fourth Proportional to 12,316.60, 18,436.71 and 9,956.91

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Solution

The fourth proportional to 12,316.60, 18,436.71 and 9,956.91 is: 14,904.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,316.60 : 18,436.71 = 9,956.91 : x
  2. Step 2: Convert to fraction form
    12,316.60/18,436.71 = 9,956.91/x
  3. Step 3: Cross multiply
    12,316.60x = 18,436.71 × 9,956.91
  4. Step 4: Simplify right side
    12,316.60x = 183,572,662.17
  5. Step 5: Solve for x
    x = 183,572,662.17/12,316.60
  6. Step 6: Final answer
    x = 14,904.49

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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.