Home / 13,488.30-18,605.84-10,499.40

Finding the Fourth Proportional to 13,488.30, 18,605.84 and 10,499.40

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Solution

The fourth proportional to 13,488.30, 18,605.84 and 10,499.40 is: 14,482.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,488.30 : 18,605.84 = 10,499.40 : x
  2. Step 2: Convert to fraction form
    13,488.30/18,605.84 = 10,499.40/x
  3. Step 3: Cross multiply
    13,488.30x = 18,605.84 × 10,499.40
  4. Step 4: Simplify right side
    13,488.30x = 195,350,104.00
  5. Step 5: Solve for x
    x = 195,350,104.00/13,488.30
  6. Step 6: Final answer
    x = 14,482.93

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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.