Home / 13,890.66-19,169.10-7,603.08

Finding the Fourth Proportional to 13,890.66, 19,169.10 and 7,603.08

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Solution

The fourth proportional to 13,890.66, 19,169.10 and 7,603.08 is: 10,492.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,890.66 : 19,169.10 = 7,603.08 : x
  2. Step 2: Convert to fraction form
    13,890.66/19,169.10 = 7,603.08/x
  3. Step 3: Cross multiply
    13,890.66x = 19,169.10 × 7,603.08
  4. Step 4: Simplify right side
    13,890.66x = 145,744,200.83
  5. Step 5: Solve for x
    x = 145,744,200.83/13,890.66
  6. Step 6: Final answer
    x = 10,492.24

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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.