Home / 12,859.86-19,291.34-4,538.16

Finding the Fourth Proportional to 12,859.86, 19,291.34 and 4,538.16

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Solution

The fourth proportional to 12,859.86, 19,291.34 and 4,538.16 is: 6,807.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,859.86 : 19,291.34 = 4,538.16 : x
  2. Step 2: Convert to fraction form
    12,859.86/19,291.34 = 4,538.16/x
  3. Step 3: Cross multiply
    12,859.86x = 19,291.34 × 4,538.16
  4. Step 4: Simplify right side
    12,859.86x = 87,547,187.53
  5. Step 5: Solve for x
    x = 87,547,187.53/12,859.86
  6. Step 6: Final answer
    x = 6,807.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.