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Finding the Fourth Proportional to 11,570.07, 15,970.62 and 8,914.08

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Solution

The fourth proportional to 11,570.07, 15,970.62 and 8,914.08 is: 12,304.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,570.07 : 15,970.62 = 8,914.08 : x
  2. Step 2: Convert to fraction form
    11,570.07/15,970.62 = 8,914.08/x
  3. Step 3: Cross multiply
    11,570.07x = 15,970.62 × 8,914.08
  4. Step 4: Simplify right side
    11,570.07x = 142,363,384.33
  5. Step 5: Solve for x
    x = 142,363,384.33/11,570.07
  6. Step 6: Final answer
    x = 12,304.45

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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.