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Finding the Fourth Proportional to 10,001.80, 14,970.30 and 8,835.40

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Solution

The fourth proportional to 10,001.80, 14,970.30 and 8,835.40 is: 13,224.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,001.80 : 14,970.30 = 8,835.40 : x
  2. Step 2: Convert to fraction form
    10,001.80/14,970.30 = 8,835.40/x
  3. Step 3: Cross multiply
    10,001.80x = 14,970.30 × 8,835.40
  4. Step 4: Simplify right side
    10,001.80x = 132,268,588.62
  5. Step 5: Solve for x
    x = 132,268,588.62/10,001.80
  6. Step 6: Final answer
    x = 13,224.48

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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.