Home / 13,555.59-20,332.18-4,790.07

Finding the Fourth Proportional to 13,555.59, 20,332.18 and 4,790.07

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Solution

The fourth proportional to 13,555.59, 20,332.18 and 4,790.07 is: 7,184.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,555.59 : 20,332.18 = 4,790.07 : x
  2. Step 2: Convert to fraction form
    13,555.59/20,332.18 = 4,790.07/x
  3. Step 3: Cross multiply
    13,555.59x = 20,332.18 × 4,790.07
  4. Step 4: Simplify right side
    13,555.59x = 97,392,565.45
  5. Step 5: Solve for x
    x = 97,392,565.45/13,555.59
  6. Step 6: Final answer
    x = 7,184.68

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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.