Home / 14,903.20-22,359.60-9,978.40

Finding the Fourth Proportional to 14,903.20, 22,359.60 and 9,978.40

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Solution

The fourth proportional to 14,903.20, 22,359.60 and 9,978.40 is: 14,970.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,903.20 : 22,359.60 = 9,978.40 : x
  2. Step 2: Convert to fraction form
    14,903.20/22,359.60 = 9,978.40/x
  3. Step 3: Cross multiply
    14,903.20x = 22,359.60 × 9,978.40
  4. Step 4: Simplify right side
    14,903.20x = 223,113,032.64
  5. Step 5: Solve for x
    x = 223,113,032.64/14,903.20
  6. Step 6: Final answer
    x = 14,970.81

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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.