Home / 14,778.81-20,403.06-10,248.06

Finding the Fourth Proportional to 14,778.81, 20,403.06 and 10,248.06

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Solution

The fourth proportional to 14,778.81, 20,403.06 and 10,248.06 is: 14,148.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,778.81 : 20,403.06 = 10,248.06 : x
  2. Step 2: Convert to fraction form
    14,778.81/20,403.06 = 10,248.06/x
  3. Step 3: Cross multiply
    14,778.81x = 20,403.06 × 10,248.06
  4. Step 4: Simplify right side
    14,778.81x = 209,091,783.06
  5. Step 5: Solve for x
    x = 209,091,783.06/14,778.81
  6. Step 6: Final answer
    x = 14,148.08

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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.