Home / 10,551.14-14,627.16-9,989.35

Finding the Fourth Proportional to 10,551.14, 14,627.16 and 9,989.35

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Solution

The fourth proportional to 10,551.14, 14,627.16 and 9,989.35 is: 13,848.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,551.14 : 14,627.16 = 9,989.35 : x
  2. Step 2: Convert to fraction form
    10,551.14/14,627.16 = 9,989.35/x
  3. Step 3: Cross multiply
    10,551.14x = 14,627.16 × 9,989.35
  4. Step 4: Simplify right side
    10,551.14x = 146,115,797.22
  5. Step 5: Solve for x
    x = 146,115,797.22/10,551.14
  6. Step 6: Final answer
    x = 13,848.35

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.