Home / 10,435.80-14,402.09-5,720.08

Finding the Fourth Proportional to 10,435.80, 14,402.09 and 5,720.08

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Solution

The fourth proportional to 10,435.80, 14,402.09 and 5,720.08 is: 7,894.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,435.80 : 14,402.09 = 5,720.08 : x
  2. Step 2: Convert to fraction form
    10,435.80/14,402.09 = 5,720.08/x
  3. Step 3: Cross multiply
    10,435.80x = 14,402.09 × 5,720.08
  4. Step 4: Simplify right side
    10,435.80x = 82,381,106.97
  5. Step 5: Solve for x
    x = 82,381,106.97/10,435.80
  6. Step 6: Final answer
    x = 7,894.09

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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.