Home / 12,860.32-19,291.68-4,539.40

Finding the Fourth Proportional to 12,860.32, 19,291.68 and 4,539.40

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Solution

The fourth proportional to 12,860.32, 19,291.68 and 4,539.40 is: 6,809.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,860.32 : 19,291.68 = 4,539.40 : x
  2. Step 2: Convert to fraction form
    12,860.32/19,291.68 = 4,539.40/x
  3. Step 3: Cross multiply
    12,860.32x = 19,291.68 × 4,539.40
  4. Step 4: Simplify right side
    12,860.32x = 87,572,652.19
  5. Step 5: Solve for x
    x = 87,572,652.19/12,860.32
  6. Step 6: Final answer
    x = 6,809.52

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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.