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Finding the Fourth Proportional to 11,005.60, 15,437 and 11,005.60

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Solution

The fourth proportional to 11,005.60, 15,437 and 11,005.60 is: 15,437.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,005.60 : 15,437 = 11,005.60 : x
  2. Step 2: Convert to fraction form
    11,005.60/15,437 = 11,005.60/x
  3. Step 3: Cross multiply
    11,005.60x = 15,437 × 11,005.60
  4. Step 4: Simplify right side
    11,005.60x = 169,893,447.20
  5. Step 5: Solve for x
    x = 169,893,447.20/11,005.60
  6. Step 6: Final answer
    x = 15,437.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.