Home / 14,663.15-20,235.18-7,948.72

Finding the Fourth Proportional to 14,663.15, 20,235.18 and 7,948.72

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Solution

The fourth proportional to 14,663.15, 20,235.18 and 7,948.72 is: 10,969.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,663.15 : 20,235.18 = 7,948.72 : x
  2. Step 2: Convert to fraction form
    14,663.15/20,235.18 = 7,948.72/x
  3. Step 3: Cross multiply
    14,663.15x = 20,235.18 × 7,948.72
  4. Step 4: Simplify right side
    14,663.15x = 160,843,779.97
  5. Step 5: Solve for x
    x = 160,843,779.97/14,663.15
  6. Step 6: Final answer
    x = 10,969.25

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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.