Home / 8,478.81-11,699.64-4,701.93

Finding the Fourth Proportional to 8,478.81, 11,699.64 and 4,701.93

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Solution

The fourth proportional to 8,478.81, 11,699.64 and 4,701.93 is: 6,488.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,478.81 : 11,699.64 = 4,701.93 : x
  2. Step 2: Convert to fraction form
    8,478.81/11,699.64 = 4,701.93/x
  3. Step 3: Cross multiply
    8,478.81x = 11,699.64 × 4,701.93
  4. Step 4: Simplify right side
    8,478.81x = 55,010,888.31
  5. Step 5: Solve for x
    x = 55,010,888.31/8,478.81
  6. Step 6: Final answer
    x = 6,488.04

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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.