Home / 13,990.58-19,307.13-7,703.18

Finding the Fourth Proportional to 13,990.58, 19,307.13 and 7,703.18

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Solution

The fourth proportional to 13,990.58, 19,307.13 and 7,703.18 is: 10,630.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,990.58 : 19,307.13 = 7,703.18 : x
  2. Step 2: Convert to fraction form
    13,990.58/19,307.13 = 7,703.18/x
  3. Step 3: Cross multiply
    13,990.58x = 19,307.13 × 7,703.18
  4. Step 4: Simplify right side
    13,990.58x = 148,726,297.67
  5. Step 5: Solve for x
    x = 148,726,297.67/13,990.58
  6. Step 6: Final answer
    x = 10,630.46

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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.