Home / 10,359.12-14,295.66-5,643.40

Finding the Fourth Proportional to 10,359.12, 14,295.66 and 5,643.40

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Solution

The fourth proportional to 10,359.12, 14,295.66 and 5,643.40 is: 7,787.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,359.12 : 14,295.66 = 5,643.40 : x
  2. Step 2: Convert to fraction form
    10,359.12/14,295.66 = 5,643.40/x
  3. Step 3: Cross multiply
    10,359.12x = 14,295.66 × 5,643.40
  4. Step 4: Simplify right side
    10,359.12x = 80,676,127.64
  5. Step 5: Solve for x
    x = 80,676,127.64/10,359.12
  6. Step 6: Final answer
    x = 7,787.93

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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.