Home / 12,707.59-19,056.65-5,312.56

Finding the Fourth Proportional to 12,707.59, 19,056.65 and 5,312.56

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Solution

The fourth proportional to 12,707.59, 19,056.65 and 5,312.56 is: 7,966.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,707.59 : 19,056.65 = 5,312.56 : x
  2. Step 2: Convert to fraction form
    12,707.59/19,056.65 = 5,312.56/x
  3. Step 3: Cross multiply
    12,707.59x = 19,056.65 × 5,312.56
  4. Step 4: Simplify right side
    12,707.59x = 101,239,569.96
  5. Step 5: Solve for x
    x = 101,239,569.96/12,707.59
  6. Step 6: Final answer
    x = 7,966.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.