Home / 15,068.72-20,783.63-9,686.27

Finding the Fourth Proportional to 15,068.72, 20,783.63 and 9,686.27

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Solution

The fourth proportional to 15,068.72, 20,783.63 and 9,686.27 is: 13,359.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,068.72 : 20,783.63 = 9,686.27 : x
  2. Step 2: Convert to fraction form
    15,068.72/20,783.63 = 9,686.27/x
  3. Step 3: Cross multiply
    15,068.72x = 20,783.63 × 9,686.27
  4. Step 4: Simplify right side
    15,068.72x = 201,315,699.41
  5. Step 5: Solve for x
    x = 201,315,699.41/15,068.72
  6. Step 6: Final answer
    x = 13,359.85

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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.