Home / 14,946.78-20,612.82-9,840.14

Finding the Fourth Proportional to 14,946.78, 20,612.82 and 9,840.14

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Solution

The fourth proportional to 14,946.78, 20,612.82 and 9,840.14 is: 13,570.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,946.78 : 20,612.82 = 9,840.14 : x
  2. Step 2: Convert to fraction form
    14,946.78/20,612.82 = 9,840.14/x
  3. Step 3: Cross multiply
    14,946.78x = 20,612.82 × 9,840.14
  4. Step 4: Simplify right side
    14,946.78x = 202,833,034.59
  5. Step 5: Solve for x
    x = 202,833,034.59/14,946.78
  6. Step 6: Final answer
    x = 13,570.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.