Home / 13,994.69-19,312.93-7,621.47

Finding the Fourth Proportional to 13,994.69, 19,312.93 and 7,621.47

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Solution

The fourth proportional to 13,994.69, 19,312.93 and 7,621.47 is: 10,517.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,994.69 : 19,312.93 = 7,621.47 : x
  2. Step 2: Convert to fraction form
    13,994.69/19,312.93 = 7,621.47/x
  3. Step 3: Cross multiply
    13,994.69x = 19,312.93 × 7,621.47
  4. Step 4: Simplify right side
    13,994.69x = 147,192,916.61
  5. Step 5: Solve for x
    x = 147,192,916.61/13,994.69
  6. Step 6: Final answer
    x = 10,517.77

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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.