Home / 10,409.20-14,364.80-5,693.68

Finding the Fourth Proportional to 10,409.20, 14,364.80 and 5,693.68

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Solution

The fourth proportional to 10,409.20, 14,364.80 and 5,693.68 is: 7,857.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,409.20 : 14,364.80 = 5,693.68 : x
  2. Step 2: Convert to fraction form
    10,409.20/14,364.80 = 5,693.68/x
  3. Step 3: Cross multiply
    10,409.20x = 14,364.80 × 5,693.68
  4. Step 4: Simplify right side
    10,409.20x = 81,788,574.46
  5. Step 5: Solve for x
    x = 81,788,574.46/10,409.20
  6. Step 6: Final answer
    x = 7,857.34

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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.