Home / 14,257.56-19,676.34-7,970.40

Finding the Fourth Proportional to 14,257.56, 19,676.34 and 7,970.40

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Solution

The fourth proportional to 14,257.56, 19,676.34 and 7,970.40 is: 10,999.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,257.56 : 19,676.34 = 7,970.40 : x
  2. Step 2: Convert to fraction form
    14,257.56/19,676.34 = 7,970.40/x
  3. Step 3: Cross multiply
    14,257.56x = 19,676.34 × 7,970.40
  4. Step 4: Simplify right side
    14,257.56x = 156,828,300.34
  5. Step 5: Solve for x
    x = 156,828,300.34/14,257.56
  6. Step 6: Final answer
    x = 10,999.66

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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.