Home / 13,002.55-19,490.80-6,433.51

Finding the Fourth Proportional to 13,002.55, 19,490.80 and 6,433.51

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Solution

The fourth proportional to 13,002.55, 19,490.80 and 6,433.51 is: 9,643.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,002.55 : 19,490.80 = 6,433.51 : x
  2. Step 2: Convert to fraction form
    13,002.55/19,490.80 = 6,433.51/x
  3. Step 3: Cross multiply
    13,002.55x = 19,490.80 × 6,433.51
  4. Step 4: Simplify right side
    13,002.55x = 125,394,256.71
  5. Step 5: Solve for x
    x = 125,394,256.71/13,002.55
  6. Step 6: Final answer
    x = 9,643.82

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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.