Home / 12,393.41-18,590.13-8,712.10

Finding the Fourth Proportional to 12,393.41, 18,590.13 and 8,712.10

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Solution

The fourth proportional to 12,393.41, 18,590.13 and 8,712.10 is: 13,068.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,393.41 : 18,590.13 = 8,712.10 : x
  2. Step 2: Convert to fraction form
    12,393.41/18,590.13 = 8,712.10/x
  3. Step 3: Cross multiply
    12,393.41x = 18,590.13 × 8,712.10
  4. Step 4: Simplify right side
    12,393.41x = 161,959,094.81
  5. Step 5: Solve for x
    x = 161,959,094.81/12,393.41
  6. Step 6: Final answer
    x = 13,068.17

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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.