Home / 10,642.77-14,688.81-6,169.32

Finding the Fourth Proportional to 10,642.77, 14,688.81 and 6,169.32

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Solution

The fourth proportional to 10,642.77, 14,688.81 and 6,169.32 is: 8,514.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,642.77 : 14,688.81 = 6,169.32 : x
  2. Step 2: Convert to fraction form
    10,642.77/14,688.81 = 6,169.32/x
  3. Step 3: Cross multiply
    10,642.77x = 14,688.81 × 6,169.32
  4. Step 4: Simplify right side
    10,642.77x = 90,619,969.31
  5. Step 5: Solve for x
    x = 90,619,969.31/10,642.77
  6. Step 6: Final answer
    x = 8,514.70

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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.