Home / 10,376.90-14,320.08-5,661.14

Finding the Fourth Proportional to 10,376.90, 14,320.08 and 5,661.14

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Solution

The fourth proportional to 10,376.90, 14,320.08 and 5,661.14 is: 7,812.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,376.90 : 14,320.08 = 5,661.14 : x
  2. Step 2: Convert to fraction form
    10,376.90/14,320.08 = 5,661.14/x
  3. Step 3: Cross multiply
    10,376.90x = 14,320.08 × 5,661.14
  4. Step 4: Simplify right side
    10,376.90x = 81,068,013.49
  5. Step 5: Solve for x
    x = 81,068,013.49/10,376.90
  6. Step 6: Final answer
    x = 7,812.36

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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.