Home / 13,903.48-20,854.96-5,585.40

Finding the Fourth Proportional to 13,903.48, 20,854.96 and 5,585.40

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Solution

The fourth proportional to 13,903.48, 20,854.96 and 5,585.40 is: 8,378.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,903.48 : 20,854.96 = 5,585.40 : x
  2. Step 2: Convert to fraction form
    13,903.48/20,854.96 = 5,585.40/x
  3. Step 3: Cross multiply
    13,903.48x = 20,854.96 × 5,585.40
  4. Step 4: Simplify right side
    13,903.48x = 116,483,293.58
  5. Step 5: Solve for x
    x = 116,483,293.58/13,903.48
  6. Step 6: Final answer
    x = 8,378.00

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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.