Home / 13,681.32-18,883.80-8,914.35

Finding the Fourth Proportional to 13,681.32, 18,883.80 and 8,914.35

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Solution

The fourth proportional to 13,681.32, 18,883.80 and 8,914.35 is: 12,304.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,681.32 : 18,883.80 = 8,914.35 : x
  2. Step 2: Convert to fraction form
    13,681.32/18,883.80 = 8,914.35/x
  3. Step 3: Cross multiply
    13,681.32x = 18,883.80 × 8,914.35
  4. Step 4: Simplify right side
    13,681.32x = 168,336,802.53
  5. Step 5: Solve for x
    x = 168,336,802.53/13,681.32
  6. Step 6: Final answer
    x = 12,304.13

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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.