Home / 15,857.85-21,848.58-10,470.69

Finding the Fourth Proportional to 15,857.85, 21,848.58 and 10,470.69

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Solution

The fourth proportional to 15,857.85, 21,848.58 and 10,470.69 is: 14,426.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,857.85 : 21,848.58 = 10,470.69 : x
  2. Step 2: Convert to fraction form
    15,857.85/21,848.58 = 10,470.69/x
  3. Step 3: Cross multiply
    15,857.85x = 21,848.58 × 10,470.69
  4. Step 4: Simplify right side
    15,857.85x = 228,769,708.12
  5. Step 5: Solve for x
    x = 228,769,708.12/15,857.85
  6. Step 6: Final answer
    x = 14,426.28

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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.