Home / 12,688,005.31-17,509,465.04-6,886,788.25

Finding the Fourth Proportional to 12,688,005.31, 17,509,465.04 and 6,886,788.25

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Solution

The fourth proportional to 12,688,005.31, 17,509,465.04 and 6,886,788.25 is: 9,503,777.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,688,005.31 : 17,509,465.04 = 6,886,788.25 : x
  2. Step 2: Convert to fraction form
    12,688,005.31/17,509,465.04 = 6,886,788.25/x
  3. Step 3: Cross multiply
    12,688,005.31x = 17,509,465.04 × 6,886,788.25
  4. Step 4: Simplify right side
    12,688,005.31x = 120,583,978,048,875.62
  5. Step 5: Solve for x
    x = 120,583,978,048,875.62/12,688,005.31
  6. Step 6: Final answer
    x = 9,503,777.40

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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.