Home / 10,155.84-14,019.36-6,622.08

Finding the Fourth Proportional to 10,155.84, 14,019.36 and 6,622.08

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Solution

The fourth proportional to 10,155.84, 14,019.36 and 6,622.08 is: 9,141.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,155.84 : 14,019.36 = 6,622.08 : x
  2. Step 2: Convert to fraction form
    10,155.84/14,019.36 = 6,622.08/x
  3. Step 3: Cross multiply
    10,155.84x = 14,019.36 × 6,622.08
  4. Step 4: Simplify right side
    10,155.84x = 92,837,323.47
  5. Step 5: Solve for x
    x = 92,837,323.47/10,155.84
  6. Step 6: Final answer
    x = 9,141.27

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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.