Home / 15,806.60-21,787.77-10,700.50

Finding the Fourth Proportional to 15,806.60, 21,787.77 and 10,700.50

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Solution

The fourth proportional to 15,806.60, 21,787.77 and 10,700.50 is: 14,749.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,806.60 : 21,787.77 = 10,700.50 : x
  2. Step 2: Convert to fraction form
    15,806.60/21,787.77 = 10,700.50/x
  3. Step 3: Cross multiply
    15,806.60x = 21,787.77 × 10,700.50
  4. Step 4: Simplify right side
    15,806.60x = 233,140,080.64
  5. Step 5: Solve for x
    x = 233,140,080.64/15,806.60
  6. Step 6: Final answer
    x = 14,749.54

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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.