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Finding the Fourth Proportional to 10,637.75, 15,970.75 and 9,087.72

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Solution

The fourth proportional to 10,637.75, 15,970.75 and 9,087.72 is: 13,643.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,637.75 : 15,970.75 = 9,087.72 : x
  2. Step 2: Convert to fraction form
    10,637.75/15,970.75 = 9,087.72/x
  3. Step 3: Cross multiply
    10,637.75x = 15,970.75 × 9,087.72
  4. Step 4: Simplify right side
    10,637.75x = 145,137,624.34
  5. Step 5: Solve for x
    x = 145,137,624.34/10,637.75
  6. Step 6: Final answer
    x = 13,643.64

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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.