Home / 13,990.77-19,307.23-7,703.15

Finding the Fourth Proportional to 13,990.77, 19,307.23 and 7,703.15

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Solution

The fourth proportional to 13,990.77, 19,307.23 and 7,703.15 is: 10,630.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,990.77 : 19,307.23 = 7,703.15 : x
  2. Step 2: Convert to fraction form
    13,990.77/19,307.23 = 7,703.15/x
  3. Step 3: Cross multiply
    13,990.77x = 19,307.23 × 7,703.15
  4. Step 4: Simplify right side
    13,990.77x = 148,726,372.98
  5. Step 5: Solve for x
    x = 148,726,372.98/13,990.77
  6. Step 6: Final answer
    x = 10,630.32

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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.