Home / 13,643.45-18,827.93-7,675.12

Finding the Fourth Proportional to 13,643.45, 18,827.93 and 7,675.12

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Solution

The fourth proportional to 13,643.45, 18,827.93 and 7,675.12 is: 10,591.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,643.45 : 18,827.93 = 7,675.12 : x
  2. Step 2: Convert to fraction form
    13,643.45/18,827.93 = 7,675.12/x
  3. Step 3: Cross multiply
    13,643.45x = 18,827.93 × 7,675.12
  4. Step 4: Simplify right side
    13,643.45x = 144,506,732.17
  5. Step 5: Solve for x
    x = 144,506,732.17/13,643.45
  6. Step 6: Final answer
    x = 10,591.66

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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.