Home / 12,709.32-19,066.53-4,389.65

Finding the Fourth Proportional to 12,709.32, 19,066.53 and 4,389.65

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Solution

The fourth proportional to 12,709.32, 19,066.53 and 4,389.65 is: 6,585.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,709.32 : 19,066.53 = 4,389.65 : x
  2. Step 2: Convert to fraction form
    12,709.32/19,066.53 = 4,389.65/x
  3. Step 3: Cross multiply
    12,709.32x = 19,066.53 × 4,389.65
  4. Step 4: Simplify right side
    12,709.32x = 83,695,298.08
  5. Step 5: Solve for x
    x = 83,695,298.08/12,709.32
  6. Step 6: Final answer
    x = 6,585.35

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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.