Home / 12,412.90-18,612.60-6,159.16

Finding the Fourth Proportional to 12,412.90, 18,612.60 and 6,159.16

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Solution

The fourth proportional to 12,412.90, 18,612.60 and 6,159.16 is: 9,235.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,412.90 : 18,612.60 = 6,159.16 : x
  2. Step 2: Convert to fraction form
    12,412.90/18,612.60 = 6,159.16/x
  3. Step 3: Cross multiply
    12,412.90x = 18,612.60 × 6,159.16
  4. Step 4: Simplify right side
    12,412.90x = 114,637,981.42
  5. Step 5: Solve for x
    x = 114,637,981.42/12,412.90
  6. Step 6: Final answer
    x = 9,235.39

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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.