Home / 9,420.30-14,128.08-3,875.19

Finding the Fourth Proportional to 9,420.30, 14,128.08 and 3,875.19

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Solution

The fourth proportional to 9,420.30, 14,128.08 and 3,875.19 is: 5,811.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,420.30 : 14,128.08 = 3,875.19 : x
  2. Step 2: Convert to fraction form
    9,420.30/14,128.08 = 3,875.19/x
  3. Step 3: Cross multiply
    9,420.30x = 14,128.08 × 3,875.19
  4. Step 4: Simplify right side
    9,420.30x = 54,748,994.34
  5. Step 5: Solve for x
    x = 54,748,994.34/9,420.30
  6. Step 6: Final answer
    x = 5,811.81

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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.