Home / 13,030.12-19,551.66-10,400.32

Finding the Fourth Proportional to 13,030.12, 19,551.66 and 10,400.32

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Solution

The fourth proportional to 13,030.12, 19,551.66 and 10,400.32 is: 15,605.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,030.12 : 19,551.66 = 10,400.32 : x
  2. Step 2: Convert to fraction form
    13,030.12/19,551.66 = 10,400.32/x
  3. Step 3: Cross multiply
    13,030.12x = 19,551.66 × 10,400.32
  4. Step 4: Simplify right side
    13,030.12x = 203,343,520.53
  5. Step 5: Solve for x
    x = 203,343,520.53/13,030.12
  6. Step 6: Final answer
    x = 15,605.65

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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.