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Finding the Fourth Proportional to 15,800.54, 21,807.53 and 9,427.52

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Solution

The fourth proportional to 15,800.54, 21,807.53 and 9,427.52 is: 13,011.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,800.54 : 21,807.53 = 9,427.52 : x
  2. Step 2: Convert to fraction form
    15,800.54/21,807.53 = 9,427.52/x
  3. Step 3: Cross multiply
    15,800.54x = 21,807.53 × 9,427.52
  4. Step 4: Simplify right side
    15,800.54x = 205,590,769.05
  5. Step 5: Solve for x
    x = 205,590,769.05/15,800.54
  6. Step 6: Final answer
    x = 13,011.63

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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.