Home / 10,359.47-14,295.80-5,643.47

Finding the Fourth Proportional to 10,359.47, 14,295.80 and 5,643.47

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Solution

The fourth proportional to 10,359.47, 14,295.80 and 5,643.47 is: 7,787.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,359.47 : 14,295.80 = 5,643.47 : x
  2. Step 2: Convert to fraction form
    10,359.47/14,295.80 = 5,643.47/x
  3. Step 3: Cross multiply
    10,359.47x = 14,295.80 × 5,643.47
  4. Step 4: Simplify right side
    10,359.47x = 80,677,890.21
  5. Step 5: Solve for x
    x = 80,677,890.21/10,359.47
  6. Step 6: Final answer
    x = 7,787.84

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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.