Home / 13,405.13-18,478.61-10,567.43

Finding the Fourth Proportional to 13,405.13, 18,478.61 and 10,567.43

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Solution

The fourth proportional to 13,405.13, 18,478.61 and 10,567.43 is: 14,566.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,405.13 : 18,478.61 = 10,567.43 : x
  2. Step 2: Convert to fraction form
    13,405.13/18,478.61 = 10,567.43/x
  3. Step 3: Cross multiply
    13,405.13x = 18,478.61 × 10,567.43
  4. Step 4: Simplify right side
    13,405.13x = 195,271,440.81
  5. Step 5: Solve for x
    x = 195,271,440.81/13,405.13
  6. Step 6: Final answer
    x = 14,566.92

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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.