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Finding the Fourth Proportional to 15,070.10, 20,799.13 and 9,102.63

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Solution

The fourth proportional to 15,070.10, 20,799.13 and 9,102.63 is: 12,563.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,070.10 : 20,799.13 = 9,102.63 : x
  2. Step 2: Convert to fraction form
    15,070.10/20,799.13 = 9,102.63/x
  3. Step 3: Cross multiply
    15,070.10x = 20,799.13 × 9,102.63
  4. Step 4: Simplify right side
    15,070.10x = 189,326,740.02
  5. Step 5: Solve for x
    x = 189,326,740.02/15,070.10
  6. Step 6: Final answer
    x = 12,563.07

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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.