Home / 13,990.92-19,307.45-7,703.29

Finding the Fourth Proportional to 13,990.92, 19,307.45 and 7,703.29

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Solution

The fourth proportional to 13,990.92, 19,307.45 and 7,703.29 is: 10,630.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,990.92 : 19,307.45 = 7,703.29 : x
  2. Step 2: Convert to fraction form
    13,990.92/19,307.45 = 7,703.29/x
  3. Step 3: Cross multiply
    13,990.92x = 19,307.45 × 7,703.29
  4. Step 4: Simplify right side
    13,990.92x = 148,730,886.51
  5. Step 5: Solve for x
    x = 148,730,886.51/13,990.92
  6. Step 6: Final answer
    x = 10,630.53

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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.